I've been on Cytomel for a few months now because my Free T3 was very low. (Pap cancer 3 years ago, TT 2006, Synthroid 125 mcg.) I started on a whole 5 mcg tablet and for some reason it was determined that I'm very sensitive to it. So I started with 1/4 per day and have, over time, worked my way up to 1/2 pill in the morning and the other 1/2 at 3pm. I feel great now, no problems at all. But, I've noticed that I'm having hot flashes very frequently, waking up at night just soaking in sweat. Never had this problem before and I'm wondering if it could be related to the Cytomel or just that I'm 43! Should I mention it to the doc? I go for labs this Friday.