omg I had the exact same problem because depression made me lose a lot of weight and then my fast metabolism kept it off no matter what I ate. people are such asshats.
I completely understand what you are going through, i was the exact same way with it :]. but when it was the turn f age and i started drinking and i had a licence i got fat quickly hahahah it was awkward, the i actually got anorexia to get back to my old weight and to be thin like i used to :'/. but now im a healthy medium XD
I can relate to this...not *now* as I'm in the exact opposite weight issue, but as a preteen I was skinny and called toothpick and everything else, and it's not fun. I didn't have an eating issue when I was told it was my lack of body fat that was messing with my systems and everything. Then came high school when emotions blew everything out of proportion and I did start having the issues because of the fact that some people are outright cruel.
to all who think comments are rude so you know it goes either way as stated before..... I am overweight and I love my curves but I would like to have a thinner waistline and nice flat tummy...... but I am who I am and I guess you are who you are and be happy about it if people are rude they have problems with themselves not you.......