Was wondering if anyone else had the symptoms I have and maybe had an idea whats going on. I was overactive thyroid at 21, had pills for a few years, radioiodine then went underactive. Had kids etc. When I reached 38 started having these horrible sweats always my head and hair wringing but not the rest of me. Have been to doc regarding hormones they say nothing wrong. Past 2 years horrible sweats during night not all the time and sometimes feel like im running a fever during the day too. Im on a high dose of thyroxine and have always been. Checked all the time as some thyroxine by the chemists lacks what you need. Bloody terrible if you ask me! My periods have gone bad as in extremely heavy as well. Any ideas?