Hi, there seems a lot of expertise on here so wondering if anyone has a quick answer to my TSH question.
I am hyper and been on carbimazole for over a year now (surgery is scheduled soon). Both my T3 and T4 and now within range but TSH still stubbornly low (less than 0.02). Every doctor I've asked about this has explained the role of the pituitary gland and TSH and just said "the TSH often takes a while to catch up" with very little other information. I was under the impression the 'catch-up' time was a matter of months, not a full year.
I feel well and not unduly concerned but just curious as to why its still so low and if it's likely to right itself. Are there any associated side effects to a low TSH level? is there anything else that could be causing this? is it something I should be concerned about or not?
thanks for your help