I'm trying to find a doc who is willing to treat my symptomatic hypothyroidism when TSH is high but within UK 'normal' range, with low FT4.

[adriann]

Hi, I'm new here and I'm trying to find a doctor or endocrinologist who is willing to treat my symptomatic hypothyroidism when TSH is high but within UK 'normal' range, with low FT4.

I've been suffering from a range of symptoms for a number of years, including; high blood pressure, occasional atrial fibrillation, aching joints, muscle cramps, insomnia, daytime fatigue, weight gain, multiple nodules on my thyroid (ultrasound), plus high Cholesterol, low B12, Low Magnesium (RBC) and low Potassium. I recently worked out that these symptoms may fit with hypothyroidism. I've been supplementing Magnesium, Potassium & B12 since Oct 2017 when I found they were low, and it seemed to help my hypothyroid symptoms a little for a couple of months, but then the symptoms returned. My GP said that all my blood tests were normal - not a surprise really. I organised to see an endocrinologist privately and he did an MRI scan and an ultrasound to confirm multiple nodules on my thyroid, and organised some blood tests but just said my thyroid was a bit 'sluggish' and he could not treat me yet for hypothyroidism. He said I would need to wait until it got much worse before he would treat it, which means I'm not sick enough yet seemingly?

For info here are my recent blood test results:

Aug 2016 - TSH: 3.0, FT4: 14.0, FT3: 5.3, Iron: 14.2, TIBC: 67, Transferrin Sat: 21%

Jan 2018 - TSH: 3.55, FT4: 12.9, Iron: 14.9, TIBC: 64.4, Transferrin Sat: 23.1%, CRP: 1.1

2nd Feb 2018 - TSH: 3.9, FT4: 13.3, FT3: 5.3

21st Feb 2018 - TSH: 3.5, FT4: 12.0, Total T4: 70.4, FT3: 5.17, TgAb: <10, TPOAb: <9, CRP: 1.4, Folate: 7.44, Ferritin: 67.3

I'd welcome any thoughts on whether I'm on the right track to consider hypothyroidism as well if anyone can help.

Anyway, I'm keen to see if anyone has experience in finding a doctor or endocrinologist in the south or southwest of England that is willing to treat and prescribe for someone with my thyroid levels rather than waiting for it to fail properly, so if anyone could suggest one (by PM if preferred) I'd be very grateful.

Many thanks

[Muffy]

Did you have your blood drawn as early in the day as possible e.g. 8 am?

[HLAB35]

Agree with Muffy that to get the best picture of a thyroid panel is to do one after fasting very early in the morning.

I expect that a part of your problem ( symptom-wise ) could lie with your adrenals as you've had low b12 and low magnesium. When one lot of hormones is out of whack, others are also affected. Have you had vit d checked?

Magnesium and b12 deficiency would have caused issues with your cortisol production. Also, low vitamin d can have a profound effect on all hormone production. Magnesium works with B5 and B6 (best form is p-5-p) to help control and regulate cortisol. Zinc is also helpful at reducing inflammation.

[Ansteynomad]

Hi, do you have the ranges for these results?

[SilverAvocado]

We need the ranges to make sense of all those numbers.

The possibly 'good news' is that your thyroid is reducing in function over time.

Something that's bad news in getting to the bottom of things is you seem to be negative for thyroid antibodies. This is a test that can give false negatives, so it's a shame it hasn't ended up getting retested. This seems like you don't have autoimmune thyroid disease, or Hashimoto's. This is by far the most common form of becoming hypothyroid. It would have given a bit of leverage with doctors in getting treatment.

But also, not having antibodies, it's a lot more puzzling how you could have become hypothyroid, which does make me suspect it's not the primary illness, and maybe vitamin deficiencies or other hormone imbalance is what's at the centre.

You haven't given us any blood tests for B12, so we can't see whether your supplement ing is working. This gives symptoms very similar to hypothyroid, and is another condition doctors don't treat very well. The improving and then slumping sounds a lot like starting an inadequate treatment. Injections are often needed as the final treatment for B12.

If you can find the ranges for these tests I expect you will get a lot more information.

[mistydog in reply to SilverAvocado]

Might not be a primary hypothyroidism but a central or secondary/tertiary type?

[SilverAvocado in reply to mistydog]

I wondered about this, too. But TSH is high in range, and freeT4 doesn't seem to be responding.

I'm not sure TSH would get this high with central hypothyroid. And would have through the thyroid would make more freeT4 if it could, with a raised TSH.

But I don't know much about the kinds of numbers you'd see for central.

In case Adriannorris doesn't know, central hypo is when the pituitary isn't producing enough TSH, telling the thyroid to produce hormone. So the thyroid can be completely healthy, but just isn't being told to do anything.

Btw, the pattern of having a good freeT3 while freeT4 is on the floor is pretty common. Indicating that the thyroid is struggling to produce anything (it mainly makes T4), so the body has ramped up conversion to T3 (the active form your body needs).

[rslnhwt in reply to SilverAvocado]

I remember reading that in central, TSH can be seen up to 7. The key indicator is that TSH is abnormally low with respect to the FT4. It doesn't actually need to be below range.

[SilverAvocado in reply to rslnhwt]

Thanks Rsinhwr, reading my last post, I sound quite defensive! Sorry Adriannorris, Central Hypo is still a possibility, and looking through the older blood tests it looks like it's been 2.5 in the past with very low freeT4.

[klr31]

Vitamin D? Try iron supplements.

[adriann]

Hi all, I’m really staggered by how helpful everyone is being, even more so since I’m a complete stranger and newbie to boot. Really sorry for taking a while to get back to you all – it took quite a while to enter all the data.

I appreciate your points about the ranges being required, so I’ve reproduced the test data with the ranges included this time below, but also with some of the other tests that were done at the same time, plus some background on when and where the blood was taken etc. First a bit more background in case it helps.

My symptoms have been building since 2011 when my blood pressure started to increase and over that time it was very resistant to most anti-hypertensive medications until the GP settled on the combined Candesartan (ARB) + Indapamide (Diuretic) – both on max dosage, which is what I continue to take for my blood pressure to date.

This combination brought my blood pressure down to around 135/95 from around 165/110 but did not get it all the way to the ideal of 120/80. In summer 2012, I was diagnosed with paroxysmal (occasional) atrial fibrillation and the cardio just said it had likely developed because of my high blood pressure. He did a load of scans and found no structural issues with my heart which was good news, and he put me on a low dose beta blocker in addition to BP meds to help manage the AF. This did reduce the occurrence and magnitude of the AF events, but the problem was my resting heart rate has always been rather low at 50 to 55 BPM, and the beta blocker dropped it to around 40 so he said I should stop taking it.

Meanwhile he prescribed Apixaban (Novel Anticoagulant) as an insurance policy against the risk of clotting and possible stroke after AF episodes, which was fine. Typical occurrence of AF episodes was 1 to 2 every two weeks.

All my other symptoms slowly arrived over this time, and once they had arrived, they seemed to get worse and worse over the years, for example more and more joints starting to hurt, and the pain would not subside during the day as it had when it initially started. The final straw for me to do something was after multiple visits to the GP, to be told that there is nothing wrong with me, I started having very severe AF episodes every night which continued for most of the following day, then continuous AF with bursts of Ventricle Fibrillation which I understand is rather more concerning than straight AF.

Anyway, I decided to go to A&E during one particularly bad AF / VF episode last September (2017) and they just confirmed AF & VF again. I got them to run an electrolyte test and all they said at A&E was that my potassium was low (3.3 mmol/L) but would not show me the actual test printout so I could not check ranges, etc.

After the blood test and ECG to make sure I was not having a heart attack, they sent me home. This prompted me to do some research into my previous (rather limited) GP blood test results and extracted the following data spanning the years from 2011 to 2016. I have just included data where it is either close to the end points of the range or outside the reference range, where I have the data.

GP Test data (acquired) - [ranges when available in square brackets with * when outside range]

March 2010: (not fasting – time blood taken: likely in the afternoon)

Red Blood Cell distribution width (RDW): 13.5% [8 - 14%]

RBC count: 5.18 x 10^12 /L MCV: 83 fL [80 – 100 fL]

MCH: 27.6 pg [27 - 32.2 pg]

MCHC: 335 g/L [300-350 g/L]

Albumin: 47 g/L [36 - 52 g/L]

*Globulin: 20 g/L [21 – 37 g/L]

Total Protein: 67 g/L [62 - 82 g/L]

Potassium: 4.3 mmol/L [3.5 – 5.3 mmol/L]

Sodium: 141 mmol/L [135 – 145 mmol/L]

Calcium: 2.28 mmol/L [2.1 – 2.6 mmol/L]

Creatinine: 83 umol/L [60 - 120 umol/L]

Total Bilirubin: 7 umol/L [2 – 17 umol/L]

Cholesterol: 4.8 mmol/L

C reactive protein: 7mg/L [0 – 10 mg/L]

*Serum Glucose: 3.3 mmol/L [4.1 – 11 mmol/L]

TSH: 3.63 mIU/L [0.27 – 4.2 mIU/L]

Free T4: 14.4 pmol/L [11 – 22 pmol/L]

Dec 2011: (not fasting – time blood taken: likely in the afternoon)

Albumin: 45 g/L [35 - 48 g/L]

Total Protein: 66 g/L [61 - 79 g/L]

Plasma alanine aminotransferase: 35 UI/L [10 – 40 UI/L]

Potassium: 3.76 mmol/L [3.5 – 5.0 mmol/L]

Sodium: 143 mmol/L [136 – 144 mmol/L]

Calcium: 2.35 mmol/L [2.15 – 2.6 mmol/L]

Corrected Calcium: 2.28 mmol/L [2.15 – 2.6 mmol/L]

Creatinine: 93 umol/L [80 - 115 umol/L]

Total Bilirubin: 10 umol/L [0 – 20 umol/L]

*Total Cholesterol: 5.6 mmol/L [<4.0 mmol/L]

*Plasma Cholesterol / LDL ratio: 5.6 [1 - 4]

Feb 2012: (not fasting – time blood taken: likely in the afternoon)

*Potassium: 3.49 mmol/L [3.5 – 5.0 mmol/L]

*Sodium: 145 mmol/L [136 – 144 mmol/L]

Creatinine: 87 umol/L [80 - 115 umol/L]

Apr 2012: (not fasting – time blood taken: likely in the afternoon)

Potassium: 3.82 mmol/L [3.5 – 5.0 mmol/L]

Sodium: 144 mmol/L [136 – 144 mmol/L]

Creatinine: 85 umol/L [80 - 115 umol/L]

June 2012: (not fasting – time blood taken: likely in the afternoon)

*RBC count: 5.52 x 10^12 /L [4.5 – 5.5 x 10^12 /L]

*MCV: 79.9 fL [80 – 100 fL] *MCH: 26.8 pg [27 – 32 pg]

MCHC: 33.6 g/dL [32-36 g/dL]

TSH: 2.37 mIU/L [0.34 – 5.6 mIU/L]

Free T4: 10.7 pmol/L [7.5 – 21.1 pmol/L]

3rd Aug 2012: (not fasting – time blood taken: likely in the afternoon)

*Potassium: 3.37 mmol/L [3.5 – 5.0 mmol/L]

Sodium: 142 mmol/L [136 – 144 mmol/L]

Creatinine: 97 umol/L [80 - 115 umol/L]

28th Aug 2012: (not fasting – time blood taken: likely in the afternoon)

Potassium: 3.7 mmol/L [3.5 – 5.0 mmol/L]

Sodium: 143 mmol/L [136 – 144 mmol/L]

Creatinine: 88 umol/L [80 - 115 umol/L]

Aug 2014: (not fasting – time blood taken: likely in the afternoon)

Potassium: 3.9 mmol/L [3.5 – 5.0 mmol/L]

Sodium: 140 mmol/L [136 – 144 mmol/L]

Creatinine: 78 umol/L [80 - 115 umol/L]

Sept 2014: (not fasting – time blood taken: likely in the afternoon)

Potassium: 3.5 mmol/L [3.5 – 5.0 mmol/L]

Sodium: 142 mmol/L [136 – 144 mmol/L]

Creatinine: 71 umol/L [80 - 115 umol/L]

Feb 2015: (not fasting – time blood taken: likely in the afternoon)

Potassium: 3.6 mmol/L [3.5 – 5.3 mmol/L]

Sodium: 141 mmol/L [136 – 144 mmol/L]

Creatinine: 84 umol/L [80 - 115 umol/L]

Blood tests arranged by private specialist (The Doctors Laboratory, London):

23rd Aug 2016: (not fasting – time blood taken: 1339)

Red Blood Cell distribution width(RDW): 14.4% [11.5 – 15.0%]

RBC count: 5.16 x 10^12 /L [4.4 – 5.8 x 10^12 /L]

MCV: 80.8 fL [80 – 99 fL]

MCH: 26.9 pg [26 – 33.5 pg]

MCHC: 333 g/L [300 - 350 g/L]

Active B12: 77 pmol/L [25.1 – 165.0 pmol/L]

Folate (serum): 13.7 ug/L [3.9 - >20.0 ug/L]

Sodium: 145 mmol/L [135 – 145 mmol/L]

Potassium: 4.1 mmol/L [3.5 – 5.1 mmol/L]

Chloride: 101 mmol/L [98 – 107 mmol/L]

Bicarbonate: 27 mmol/L [22 – 29 mmol/L]

Urea: 5.4 mmol/L [1.7 – 8.3 mmol/L]

Creatinine: 101 umol/L [66 - 112 umol/L]

Bilirubin: 9 umol/L [0 – 20 umol/L]

ALKALINE PHOSPHATASE: 55 IU/L [40 – 129]

ASPERTATE TRANSFERASE: 20 IU/L [00 – 37]

ALANINE TRANSFERASE 26.0 IU/L [10 – 50]

LDH 201 201 IU/L [135 – 225]

CK 124 IU/L [38 – 204]

GAMMA GT 24 IU/L [10 – 71]

Total Protein: 70 g/L [63 - 83 g/L]

Albumin: 48 g/L [34 - 50 g/L]

Globulin: 22 g/L [19 – 35 g/L]

Calcium: 2.54 mmol/L [2.2 – 2.6 mmol/L]

Corrected Calcium: 2.49 mmol/L [2.6 – 2.6 mmol/L]

PHOSPHATE 1.16 mmol/L 0.87 - 1.45

URIC ACID 429 umol/L [266 – 474]

RANDOM BLOOD GLUCOSE (FL) 5.1 mmol/L [3.5 - 7.9]

TRIGLYCERIDES 1.7 mmol/L [0 - 2.3]

*CHOLESTEROL 5.1 mmol/L [0 - 4.99]

HDL CHOLESTEROL 1.3 mmol/L [0.9 - 1.5]

LDL CHOLESTEROL 3.0 mmol/L [0 – 3.0]

NON-HDL CHOLESTEROL 3.8 mmol/L [0 - 3.89]

TSH: 3.0 mIU/L [0.27 – 4.2 mIU/L]

Free T4: 14.0 pmol/L [12 – 22 pmol/L]

Free T3: 5.3 pmol/L [3.1 – 6.8 pmol/L]

25 OH VITAMIN D 61 nmol/L [50 – 200]

IRON 14.2 umol/L [10.6 - 28.3]

T.I.B.C. 67 umol/L [41 – 77]

TRANSFERRIN SATURATION 21% [20 – 55]

As mentioned above, AF reached crisis point, went to A&E at end of September 2017 and found out from nurse my potassium level was 3.3 mmol/L and sent home again, so I decided to try to solve the problem myself. This was when I got copies of all my old blood tests, and spotted the often low potassium and read that if potassium is low, them likely magnesium is low, and since my kidneys were OK, I started supplementing in early October 2017 with 300mg chelated magnesium and 1,000mg potassium per day.

Interestingly ALL of my symptoms vanished within 3 days of taking the magnesium and potassium supplements and my blood pressure dropped significantly from 135/95 to 105/65 which was a little too low in fact.

I purchased the blood tests below from County laboratories / Medichecks.

29th Dec 2017: (not fasting – time blood taken: 1114)

Total Protein 66.4 64 - 82 g/L

Albumin 39.6 34 - 50 g/L

Globulin 26.8 19 - 35 g/L

Sodium 142 137 - 145 mmol/L

Potassium 3.8 3.5 - 5.0 mmol/L

Urea 4.7 1.7 - 8.3 mmol/L

Creatinine 88 66 - 112 umol/L

eGFR(MDRB)(Caucasian Only) 82 >60 unless evidence of CKD ml/min/1.73m2

Renin-Active 17.4 Resting [1.68-23.9 ng/L - Upright 2.64-27.7]

4th Jan 2018: (not fasting – time blood taken: 1339)

HAEMOGLOBIN (G/L) 151 g/L 130.00 - 170.00

HCT 0.445 L/L 0.37 - 0.50

RED CELL COUNT 5.43 x10^12/L 4.40 - 5.80

MCV 82 fl 80.00 - 99.00

MCH 27.7 pg 26.00 - 33.50

MCHC (G/L) 338 g/L 300.00 - 350.00

RDW 13.7 % 11.50 - 15.00

WHITE CELL COUNT 7.0 x10^9/L 3.00 - 10.00

NEUTROPHILS 3.86 x10^9/L 2.00 - 7.50

LYMPHOCYTES 2.33 x10^9/L 1.20 - 3.65

MONOCYTES 0.70 x10^9/L 0.20 - 1.00

EOSINOPHILS 0.10 x10^9/L 0.00 - 0.40

BASOPHILS 0.04 x10^9/L 0.00 - 0.10

PLATELET COUNT 240 x10^9/L 150.00 - 400.00

MPV 9.3 fl 7.00 - 13.00

UREA 5.5 mmol/L 1.70 - 8.30

CREATININE 88 umol/L 66.00 - 112.00

ESTIMATED GFR *82.83 90.01 - 100.00

ALKALINE PHOSPHATASE 64 IU/L 40.00 - 129.00

ALANINE TRANSFERASE 25.9 IU/L 10.00 - 50.00

CK 182 IU/L 38.00 - 204.00

GAMMA GT 23 IU/L 10.00 - 71.00

BILIRUBIN 6.1 umol/L 0.00 - 20.00

TOTAL PROTEIN 68.4 g/L 63.00 - 83.00

ALBUMIN 42.8 g/L 34.00 - 50.00

GLOBULIN 25.6 g/L 19.00 - 35.00

CALCIUM 2.44 mmol/L 2.20 - 2.60

CORRECTED CALCIUM 2.38 mmol/L 2.20 - 2.60

PHOSPHATE 1.14 mmol/L 0.87 - 1.45

URIC ACID 379 umol/L 266.00 - 474.00

HBA1C (MMOL/MOL) 35.12 mmol/mol 20.00 - 42.00

RANDOM BLOOD GLUCOSE (FL) 5.21 mmol/L 3.50 - 7.90

INSULIN 13.28 mIU/L 2.60 - 24.90

F INSULIN RESISTANCE INDEX *2.77 0.00 - 1.00

IRON 14.9 umol/L 10.60 - 28.30

T.I.B.C 64.4 umol/L 41.00 - 77.00

TRANSFERRIN SATURATION 23.14 % 20.00 - 55.00

FERRITIN 92.8 ug/L 30.00 - 400.00

TRIGLYCERIDES *2.66 mmol/L 0.00 - 2.30

CHOLESTEROL *5.72 mmol/L 0.00 - 4.99

HDL CHOLESTEROL 1.35 mmol/L 0.90 - 1.50

LDL CHOLESTEROL *3.16 mmol/L 0.00 - 3.00

NON-HDL CHOLESTEROL *4.37 mmol/L 0.00 - 3.89

CRP - HIGH SENSITIVITY 1.1 mg/l 0.00 - 5.00

TSH - THYROID STIMULATING HORMONE 3.55 mIU/L 0.27 - 4.20

FREE THYROXINE 12.9 pmol/L 12.00 - 22.00

TESTOSTERONE 12.5 nmol/L 7.60 - 31.40

17-BETA OESTRADIOL 43.6 pmol/L 0.00 - 191.99

CORTISOL 361.000 nmol/l 133.00 - 537.00

Magnesium - Serum 0.9 nmol/L 0.6 - 1.0

Serum Zinc * 30.3 umol/L 11.0 - 18.0

Vitamin B12 152 ug/L [Deficient <103 Insufficient 103-185]

FOLATE (SERUM) 12.85 ug/L 2.91 - 50.00

25 OH VITAMIN D 65.4 nmol/L 50.00 - 200.00

As a result of these I started supplementing with Vitamin D, B12 & folate in early Jan as well as Magnesium & Potassium. However, towards the end on Jan 2018, my symptoms started to return, despite taking all of the supplements detailed above. I then managed to see an Endo in late Jan 2018 and he organised these tests at an NHS lab:

Feb 2018: (not fasting – time blood taken: 1000)

Sodium 143 [133 - 146 mmol/L]

Potassium 4.0 [3.5 - 5.3 mmol/L]

Urea 5.9 [2.5 – 7.8 mmol/L]

Creatinine 78 [64 - 104 umol/L

eGFR >60TSH

Serum Magnesium 0.83 [0.70 – 1.00 mmol/L]

TSH: 3.9 mIU/L [0.35 – 5.0 mIU/L]

Free T4: 13.3 pmol/L [9 – 24 pmol/L]

Free T3: 5.3 pmol/L [3.5 – 6.5 pmol/L]

Vitamin B12 258 ng/L [200 – 900 ng/L]

The Endo said all normal, except low B12, so organised two B12 injections, then one week after first B12 injection, despite all the supplements and the B12 injections, all of my symptoms have fully returned.

21st Feb 2018: (not fasting – time blood taken: 1030)

THYROID STIMULATING HORMONE 3.49 mIU/L [0.27 - 4.20]

FREE THYROXINE 12 pmol/L [12.00 - 22.00]

TOTAL THYROXINE(T4) 70.4 nmol/L [59.00 - 154.00]

FREE T3 5.17 pmol/L [3.10 - 6.80]

THYROGLOBULIN ANTIBODY <10 IU/mL [0.00 - 115.00]

THYROID PEROXIDASE ANTIBODIES <9.0 IU/mL [0.00 - 34.00]

ACTIVE B12 *>300 pmol/L [25.10 - 165.00]

FOLATE (SERUM) 7.44 ug/L [2.91 - 50.00]

CRP - HIGH SENSITIVITY 1.4 mg/l [0.00 - 5.00]

FERRITIN 67.3 ug/L [30.00 - 400.00]

The Endo also tested me for the following; normal short Synacthen test with a peak value of 711; normal overnight Dexamethasone suppression test with a value of less than 30.

So this is all the data I have – apologies for the size of my post. Any suggestions or thoughts most welcome. Meanwhile if anyone could suggest a doc or Endo (by PM) in the south or south west England who is not obsessed by UK TSH levels I’d also be very grateful.

Thanks again and best regards

[SilverAvocado in reply to adriann]

Adriannorris, You may get more response if you make a new post so more people see all these figures! I suggest maybe including the thyroid panels, vitamins and minerals you've been treated for, and ferritin, folate, and VitD in a post. Then maybe link to this one or put the rest in a reply to your own thread? It made my head spin trying to read them all in one go.

Some members are very good at interpreting the whole thyroid panel and other things you've got. Potassium and magnesium are more unusual to have treated, but hopefully someone will chime in. On B12 there is a lot of knowledge, although you might also want to look at the Pernicious Anaemia forum on Healthunlocked, as they are also v good.

[HLAB35]

Have you had your aldosterone level checked? If not, insist that you do from your endo.

I've just followed a 'hunch' from Dr Myhill's website - her website is great for all kinds of autoimmune issues (background is as an endo but now treats CFS / Fibromyalgia). Anyway look up 'Primary aldosteronism' which is a problem with the adrenal glands and can cause symptoms that you have plus low blood potassium levels.

endocrinediseases.org/adren...

[HLAB35]

Also found this..

ncbi.nlm.nih.gov/pmc/articl...

It says that primary aldosteronism often co-exists with thyroiditis .... I'd definitely consider retesting the thyroid antibodies as they can often come back false negative.. it's not really surprising to me - most of this conditions come with added extras!

Some private labs will do both aldosterone and thyroid function tests.

[adriann]

Hi All, thanks again for the thoughts and suggestions - I've been max'd out with work and this is the first time I've had to respond. SilverAvocado and HLAB35, thanks for all the digging. I've pushed the endo to do the Aldosterone / Renin test and just waiting for the test results after having a look at the Dr Mayhill site and NIH link. Good idea to repost with all the data in a new post and will look to do this later today or this evening.

Meanwhile I did another medichecks based thyroid check test with a home kit so I could take the blood first thing in the morning (0730) after fasting, but had ordered the kit before I read the suggestion to get my antibodies retested, so did not include these, but I will include them in my next test.

The results seem to confirm Hypothyroid a little more definitively with the following results:

THYROID STIMULATING HORMONE: *4.37 mIU/L [0.27 - 4.20]

FREE THYROXINE: *11.9 pmol/L [12.00 - 22.00]

FREE T3: 5.22 pmol/L [3.10 - 6.80]

Also it seems my blood glucose levels seem to go rather low (on or below 3.0 mmol/L) reasonably often, but I'm not Diabetic - at least not yet..... I'm getting a fresstyle libre sensor to monitor this as well to try to work out what this means as well.

Thanks again and will keep you posted.