I was diagnosed with hyperthyroid disease about a year ago. In April of 07 i had to take a radio active iodine capsule, which my DR. says has killed my thyroid. Since Jan. of 08 i have been taking cytomel 50mcg and levothyroxine 125mcg every morning. I have gained 50lbs and my thyroid levels are: TSH 0.00, T3U 33, T4 7.6, FTI 2.5 and i am always tired and it doesn't matter how much i watch what i eat or exercise i can not lose weight WHY??? What am i doing wrong? Please help me lose the weight..Give me some ideas.