Why is my TSH increasing?: I had my thyroid... - Thyroid UK

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Why is my TSH increasing?

marmitelover81 profile image
23 Replies

I had my thyroid removed in Jan 2020 due to thyroid cancer and had RAI in June 2020. Since June 2020 my levothyroxine dose has stayed the same.

My TSH has always been below range my levels are been suppressed due to cancer.

My last blood test at GP surgery showed my TSH has increased to 0.43 from 0.22.

My TSH is now in range and my GP is insisting that this is ok, but if my TSH is not been suppressed isn't there a chance the cancer will return.

Feeling so upset, worried about cancer reoccurrence and have a GP that just won't listen to me 😢

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marmitelover81
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23 Replies
greygoose profile image
greygoose

Do you not have an endo supervising your treatment?

marmitelover81 profile image
marmitelover81 in reply to greygoose

yes he is on annual leave at the moment so thought GP would be the best option

greygoose profile image
greygoose in reply to marmitelover81

Best to wait until he comes back, then. Nothing is going to happen over-night, so you're not in any immediate danger. Keeping the TSH suppressed is so that any remaining thyroid tissue won't regrow with the stimulation, and the cancer with it. But, that regrowth, if it happens, would be very, very slow. And, with such a low TSH, probably wouldn't happen at all. :)

marmitelover81 profile image
marmitelover81 in reply to greygoose

Yeah i think sometimes I need to remind myself that thyroid cancer is slow growing. I just panic I think because I had a delay with RAI due to Covid and I think since then I have always worried about delaying treatment.

greygoose profile image
greygoose in reply to marmitelover81

Understandable. You've been through a lot. But I really think you'll be fine, now. Until your endo gets back, anyway. :)

SeasideSusie profile image
SeasideSusieRemembering

marmitelover81

Presumably your endo/surgeon instructed for TSH to be suppressed when you had your thyroid removed? Is this in your discharge notes/letter to GP? Maybe check this out, maybe contact your endo/surgeon?

marmitelover81 profile image
marmitelover81 in reply to SeasideSusie

Have tried contacting my endo but he is on annual leave at the moment so have to wait for him to return.

SeasideSusie profile image
SeasideSusieRemembering in reply to marmitelover81

Well I expect that will only be a couple of weeks. Speak to his secretary, explain the position and ask that he looks into this urgently on his return.

marmitelover81 profile image
marmitelover81 in reply to SeasideSusie

Yeah I know it won't be long he's back at the end go August just feeling anxious waiting.

SeasideSusie profile image
SeasideSusieRemembering in reply to marmitelover81

As Helvella says, did your GP get a letter after your op? If so it will be on your record somewhere. I have found that letters from consultants do get scanned/filed but GPs tend to forget about them. It's happened with a letter from my lung consultant, I know they have a copy but if I get a lung infection they don't follow his instructions on how to treat it so I would need to remind them about the letter and exactly what they should give me.

If you ring your GP surgery the receptionist should be able to look back to see if she can locate any letter. Or if you had a letter then you can show this to the GP.

shaws profile image
shawsAdministrator in reply to marmitelover81

The endo should have sent your GP a notification of what he would recommend to prescribe to you.

helvella profile image
helvellaAdministratorThyroid UK

Did you receive anything, such as a letter, from your cancer treatment people saying your TSH needed to be suppressed? Or did your GP get one?

If you do not have one, contact your GP/surgery to get copies of letters around that time. Even contact the cancer people to ask them.

In my book, your GP appears almost wilfully dumb. 0.43 can in no way be regarded as suppressed. Therefore, either your GP is missing the need to suppress TSH, or is ignorant of what it actually means, or has decided it is no longer required.

marmitelover81 profile image
marmitelover81 in reply to helvella

I don't think I received a letter. My GP is refusing to do another thyroid test because this test was done within the last 3 months so they can't do another.

I have told her I feel unwell but she just tells me its not my thyroid. They only tested tsh, didn't test t3 or t4.

helvella profile image
helvellaAdministratorThyroid UK in reply to marmitelover81

See what your GP records hold. That seems the best first step from here.

The need for suppression would appear to me the strongest argument you have.

marmitelover81 profile image
marmitelover81 in reply to helvella

I will call them to find out.I keep telling her I need to be suppressed but she just keeps telling me that I am in range, to which I tell her I shouldn't be in range and we just go round in circles.

I feel terrible too but she still won't test thyroid levels, she says I feel terrible because my vitamin b9 levels are low and its not my thyroid causing the problem.

PurpleNails profile image
PurpleNailsAdministrator

GPs are taught TSH being is range is the goal. If TSH Is in range so are thyroid hormones (they believe) although once the thyroid is not working or removed the TSH isn’t the reliable measure - it’s FT4 & FT3 which is important.

Do you have an endocrinologist or oncologist? they usually advise if the TSH should be suppressed & this should be on your medical record. eg in a letter or discharge information.

Explain to your GP the TSH (thyroid stimulating hormone) is kept low to stop thyroid cells being stimulated and should any residual thyroid cells be stimulated that cancer cells could spread.

They may argue with surgery & RAI thats highly unlikely so unnecessary to keep TSH suppressed.

There are varying opinions on TSH suppression after treatment.

Total suppression is <0.01. but under range TSH is not same as suppressed. So from 0.22 to 0.43 is not a great increase (both below range?) and can be explained by testing at different times of day.

Testing should ideally be earning morning, fasting overnight (lots of water) delay levo until after draw. Avoid biotin week before as can skew results. This shows highest TSH lowest FT4 and ensures consistent results.

The FT4 is usually kept in upper part of range to ensure TSH low & most feel well & adequately replace when this level is reached.

Do you have hypothyroid symptoms?

Was FT4 & FT3 actually tested? They are not always. Always obtain a print out of results to see what tested and results- or online access to record.

Keeping track of your own results very important.

marmitelover81 profile image
marmitelover81 in reply to PurpleNails

FT4 and FT3 were not tested. I have hypo symptoms but my folate is low so the symptoms are so similar they say its the low folate making me feel this way. I feel so exhausted when I do something, lightheaded and dizzy. Ive been off work for the past two weeks because of my symptoms and they don't seem to be improving.

PurpleNails profile image
PurpleNailsAdministrator in reply to marmitelover81

FT4 & FT3 need to be tested. Many are refused this and therefore arrange private testing. The kit is ordered online, fingerprick sample taken at home (or extra fee for private draw) - posted sample and results available quite quickly online.

There are a number of companies which offer options from basic thyroid function to packs with antibody tests and nutrient tests.

Do you think this is something you could manage?

marmitelover81 profile image
marmitelover81 in reply to PurpleNails

Not at the moment money is tight and made worse with me being off work sick 😩

SeasideSusie profile image
SeasideSusieRemembering in reply to marmitelover81

When it's possible for you to do so, the cheapest basic thyroid function test - TSh, FT4 and FT3, is with Monitor My Health (MMH) and it costs £26.10 with code here:

thyroiduk.org/help-and-supp...

MMH is an NHS lab at Exeter Hospital who offer this test to the general public. As it is an NHS lab the results are more likely to be accepted by a GP than if tested with one of the other private labs.

marmitelover81 profile image
marmitelover81 in reply to SeasideSusie

Ok thank you, hopefully when my endo returns he will arrange full thyroid blood test.

SlowDragon profile image
SlowDragonAdministrator in reply to marmitelover81

Ask him to include vitamin D, ferritin, B12 and folate testing as well

Essential to test TSH, Ft4 and Ft3 together

Always test thyroid levels early morning, ideally before 9am and last dose levothyroxine 24 hours before test

How much levothyroxine are you currently taking

Do you always get same brand levothyroxine at each prescription

What vitamin supplements are you currently taking

Brightness14 profile image
Brightness14

When I had my 6 weeks follow up after my TT in 2015 my professor surgeon handed me a letter, which states that my TSH should always be suppressed. Perhaps you could get a letter from the hospital with the same information. I still visit the GP and collect my prescription but never use it. I do a once a year private blood test and take NDT which I source myself. This keeps the GP happy and me too.

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