My doc has me on 50 mcg once a day of Cytomel a day. I am 5' 5" and around 135. I am having a hard time falling asleep even with sleeping pills and my resting heart rate was 110 last night. It is usually about 60. It makes me feel like I've taken cold medicine. Anywone else? Do we have to take this stuff? I start the LID on June 5 and have the RAI June 15.