I too have gained weight since being on Levothyroxine. 15 lbs in 2 yrs.
Very annoying. Dr. said TH of 3-5 is where they like to see it.
Maybe, but I didn't need the weight gain at all. and It is not as if I am sitting
around either. Pretty active.

I am one of those people that lose and gain weight very fast all to my stomach. I lost weight the first week, but my appetite increased. I then started to gain weight because I was eating more. So I have started exercising and the weight does not seem to be coming off so that is my final straw. I do not want to keep putting on the pounds. The drug, I have also read, is interfering with the beta blocker that I take and I am starting to feel that the beta blocker is not working as well either. I am only on 25mg. And I only had a slight problem. I am sure others are worse and need to take the medication, but I have had enough.