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Thyroid UK
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Please can you look at my latest test

Worrying about not being able to get T3 thought I would test without for a while, so dropped T3 and used levothyroxine 75mcg for 6 weeks

Result. TSH. 2.79. 0.27-4.20 GPs did these

T4. 12 12-22

T3. 3.1. 3.10-6.80

Taking for 6 weeks Levo 100mcg

I got a Blue Horizen test

CRP 0.70

Ferritin 54.1 20-150

TSH 0.23 Same range as above

Total 4 100.9

FT4 20.23

FT3 3.40

Vit12. 632

Folate. 15.41. 8.83-60.8

I have restarted T3. 6.5mcg fromGreece. I can see that I need T3

I would be very grateful for any other comments.

I had stopped taking Gentle Iron as I know too much is bad, but again I see a I need to continue

B12 has dropped I have been taking b vits and 1000 mcg Solgar B12

Not sleeping , so hot . Constipated, aching, dry sore eyes, at night my mouth is stuck where it's so dry. Muddling words. I'll stop now!!

Thank you for all help you give. I am so glad of t his forum, I realise I'm no alone. Sadly !

13 Replies

Looks like you don't convert T4 to T3 well but you know that.

Do you have any results for vitamin D3 as that needs to be optimal.

Ferritin, I believe needs to be around a minimum of 70.

Other avenues to look at would be adrenal function and gut health. I would recommend the excellent book from Dr Peatfield which talks about the reasons why things can go wrong and what we can do to fix them:



Her conversion ratio is under 4:1 it's actually rather good

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So good that the T4 levels are nearly at the top of the range and the T3 levels near the bottom


My mistake! I didn't see the second set of results. I thought the first set were levo alone 😓 I retract my statement

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Even then I'm not convinced that blood tests results always show the true story. My last blood tests showed that my T3 levels were excellent but I still felt rubbish.

A subsequent urine test revealed that there was little uptake. Back to the drawing board. This condition is so frustratingly complex - just when you think you're getting on top of things .....


Blood results definitely don't give a full picture. They can hint towards what approach to take, but like you said in the end clinical results are the most important. I totally get where your frustration is coming from, I'm in the same boat!

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Have you had any tests for anti bodies? I had raised antibodies (TPO) 5 years after being diagnosed hypo. I was very ill until I started a gluten free diet which reduced the Ab's and I began to feel better.


Hey crimple, how long did it take on gluten free before you noticed a drop in antibodies? I ask because I've been at it for a year but in this time my antibodies doubled from 450 to now over 1000 (don't know the actual number since the lab's range ends at 1000).


Dang. I am totally confused now. The ratio you quote isn't what I am working on . Please details k your workings


I was completely wrong, I was basing what I said off the first set of results, I hadn't read your results properly. Since the second set of results are levo alone your conversion is definitely off. Sorry about that!


My workings are 5.95




I've been worrying about that all day . I had TT for cancer so no thyroid

All dang's other support will be useful re vitamins etc.

Not sure what my Vit D is I will need a separate test for that.

I'm sure Blue Horizen included Vit D last time , I was low then last year.

Antibodies were never tested as the diagnosis of Abnormal cells in thyroid , pappilliary carcinoma was the first ever check I had .

It was said by surgeon I didn't have symptoms, however I've certainly lost 'symptoms' so not something I will accept .

If I had antibodies then but never discovered would that still effect my gut health, or if the thyroid is gone are the antibodies gone also

Even if I had them. Only my son has positive antibodies !!


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