Very confused by blood results

Hello, I'm new to this. Have had two year history of hypothyroid symptoms which my GP put down to low iron levels (ferritin of 6) after insisting, he checked thyroid function and I have Thyroid peroxidase antibodies of 1600 but low TSH ( he hasn't done T3 or T4) I am so ill with muscle pain, reynauds type symptoms, fatigue and IBS that I am losing all my self employment contracts. He has sent me away to have my bloods redone in 6 months. I feel really desperate. Can someone explain to me what TSH being non linear means? can anyone point me towards reliable studies I can take to him? All advice welcome. Marie

6 Replies

  • Hi Marie - I have answered on your blog:

    Clare xx

  • Yes, thanks Clare, didn't realise I should really have posted it here. :)

  • This is a link. You will learn as you go along that many GP's do not know how to treat thyroid conditions and rely only on the TSH.

  • That is helpful, thank you.

  • Hi My TSH has always been low, low it has been unmeasurable for a long time. I was treated,from long ago ,on the basis that my Free T3 was below range. T4 so so, In those days all these 3 tests were always done, although no T3 available then. To have treatment with low TSH you may need to see a good endo, often GP`s are frightened to prescribe on this. Make sure you have the 3 tests , with ranges, ask. Also if you see an endo , if good ,then they should check all the other things too. however, do your own research and only see a very good endo. There are other causes endocrinological that may cause low TSH, (not in my case). I have Hypo, enlarged thyroid and nodules, quite severe actually and it is Hashimoto`s (,autoimmune )I hope this helps. Make sure it is your choice of endo and not the GP`s,research who you want to see first.


  • Thank you jack is, that all sounds like good advice. Marie

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