I was diagnosed 15 years ago as a result of a blood test for something else, as having an underactive thyroid. I take 150mg of Thyroxin per day. I never put on weight, am hyper active and have chronic insomnia, and have been told I have "paradoxical symptoms. I have never been told anything about TSH etc. levels . When I express my doubts about it all then I am told I will have to sign a disclaimer in case In case of something happening . Why do I feel I'm on a different medical diagnosis country from everyone else I read about!