I'm not a doctor!!! But it sounds like you may have had a goiter that was active. So essentially you'd have extra thyroid tissue, pumping out extra thyroid hormones. Which could make you hyperthyroid. When you say you were hyper, do you mean you were tested for hyperthyroidism, or just that you were very active? :) (Mzzchief may have another explanation for you.)
I was hyperthyroid, too, but from Graves' disease (autoimmune). I was put on methimazole, and because I wasn't currently watching what I ate or anything, I ended up gaining some weight, maybe 10 to 15 pounds. Then it was discovered that I had a nodule, which turned out to be papillary carcinoma, so I had a total thyroidectomy last year, followed by RAI 6 months later. I gained more weight then, too, probably another 15 - 20. I think I ended up about 30 pounds heavier than I was when I was first diagnosed, but I don't know for sure because, as I said before, I wasn't watching what I was eating, and I have no idea what I weighed then!
So I guess I can say I have had a similar experience. Not 60 pounds, but then again, I wasn't thin or in shape to begin with, so I ended up about 50 - 60 pounds overweight.
But the good news is, you can lose weight, it just might take you a bit longer. And I find you really do need a good doctor (or doctors) to make sure you're medicated correctly, and, just like everyone else, you need to figure out what works for you. Especially when it comes to the thyroid, its especially frustrating because it affects so many different parts of your body, and on top of that, it effects everyone differently! But - you can do it!!!!
Good luck!! And if you have any more questions, don't hesitate to ask.
If I choose to not do anything differently today, tomorrow is going to be exactly the same as yesterday.
"Shoot for the moon. Even if you miss, you’ll land among the stars!" ~ Les Brown
| current weight: 162.9