Hyperthyroidism but normal T4

I wonder if anyone can help. I have had thyroid problems for 12 years now, first under active so took thyroxine, now for the past 3 years over active. I have a goitre and although I have been told it's not too big I suffer from a constant ache in my throat and pressure like someone is trying to strangle me. I am on beta blockers to slow my heart rate down and I have the incredibly itchy bumpy rash on my shins that is common to Graves disease, however, my T4 is 19.8 right in the middle of the normal range and I do not have the hormone related to Graves disease. Because of this I cannot take Carbimazole as that would revert me back to under active thyroid. My consultant is struggling to know what to suggest and has now even thought to refer me to ear, nose and throat. Any ideas please

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  • You can get pre tibial myexodema. ( the itchy rash on shins) with hashimotos, its not exclusive to Graves. ncbi.nlm.nih.gov/pubmed/162...

    Have you got antibodies suggesting hashimotos? This can speed you up and slow you down. The fast heart could be related to adrenals, iron, asthma.... Its not always because of graves to hyperthyroidism

    Xx. G

  • Tia, autoimmune thyroid disease (Hashimoto's) can make you feel like your swinging between hypo and hyper despite bloods being in normal range. If you were hyperthyroid your TSH would be suppressed and your FT4 and FT3 would be elevated over range. Ask for thyroid peroxidase and thyroglobulin antibodies to be tested. If they're positive you may benefit from a gluten-free diet which can, but not always, reduce antibodies and flare ups.

    thyroiduk.org.uk/tuk/about_...

    thyroiduk.org.uk/tuk/about_...

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