Levoxyl and losing weight

I had always used the generic form of synthroid & then the generic form Levoxyl. The beginning of April 08' my endo prescribed me the brand name Levoxyl. I take 175mg. everyday. After several weeks I began to have terrible insomnia. It was weird because I initially fell asleep easily but began to wake up every hour of the night for no reason. This went on for weeks. I even tried taking Tylenol PM to help me sleep & I still would wake up every hour if not every other hour & I had very vivid dreams that I would remember. I began waking up in the mornings feeling exhausted from all the dreaming & all the waking up. I believe I became more depressed because I was so tired. Then I read on-line that someone else experienced this while taking Levoxyl. I switched back to the generic Levoxyl & now I can sleep through the night again. I still experience fatigue & have problems losing weight. None of that changed when I switched to the brand name anyway.

I have gained 30 pounds since I started levoxyl

I started taking Levoxyl about a year ago for tsh suppression therapy- to help shrink nodules. I have never felt better in my life! No side effects other than losing weight. I lost over 40 lbs in one year (but that was with diet and exercise). I am afraid my ent will take me off levoxyl permanently and i will feel exhausted and gain back the weight. Go for ultrasound and blood tests tomorrow.

I am a 16 year old female who has been on different thyroid medication for at least 3 years. Along with my thyroid disease I have type 1 diabetes also. Right now I am taking LEVOTHYROXINE. I have taken levoxyl, synthroid, and I cant remember any others. Over the years I have gradually increased my dose to 125 mcg. Instead of losing weight with these medications, I've actually gained 25 lbs, and Ive kept my slow metabolism. Ive experienced bloating, gas, fatigue, spaceiness-like out of it, unable to concentrate, increased appetite, and mild depression. I usaully am able to get fantastic grades, and catching on to things comes easy. But now ive lost interest in friends, sports and overall life. I am wondering if this thyroid medication or my other medication- Metformin has anything to do with how I feel or overeating?