Type 1 for 37 years. I have Graves Disease which was the result of an over active thyroid. It was awesome!! I was already an average build, and the weight FELL off of me. I took meds, and when I got pregnant, it went into remission. Flash forward 18 years, and my thyroid went under active. I gained 100 pounds, and docs wouldn't listed when I tried to tell them my thyroid was underactive. They kept saying my TSH blood work was normal. I found a good website-google Stop the Thyroid Madness. It explained that the TSH can take a very long time to show up correctly. My numbers finally showed what I had been saying for over a year, and put me on Synthroid. I still have all this weight, and struggling to get it off with no luck. Hope the Joslin Clinic helped you.
Note: Just joined this website, and your post was 2 years ago. Hope you get this. LOL