Hello everyone, I was diagnosed with an underactive thyroid 18 years ago and have had a relatively easy ride. My thyroxine levels have been tweaked slightly over the years. However, after blood test last October, my thyroxine was decreased from 175 to 125. They have been as high as 200 in the past. I feel like I am conducting my life through a misty window. I've gained 12lb in weight, and have gone from a regular gym bunny to a lethargic couch potato. I've approached my GP twice who tells me my levels were too high hence the reduction. I've argued the " what's normal" debate but it's not working. These are my results from last October
Serum T4 level. 26.0 pool/L (10.0-20.0) above high ref limit
TSH level <0.03mu/l (0.2-6.0) below low ref limit
TFTs compatible with thyrotoxicosis suggests slightly excessive replacement T4.
Any comments or advice would be more than welcome.