I have been Hypothyroid for 20+years and I am taking 100mcg of Thyroxine daily. Six weeks ago I had surgery to remove a Parathyroid tumour. My Free T4 level has gone up from 18.2 to 22.4 and my TSH level remains at <0.02.My GP wants to see me but I am reluctant to have my dose altered. Does anyone know if the surgery has damaged my thyroid gland or any other reason for the sudden rise?
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