Question about metabolism..? What's wrong with me!?

Haha I have this problem too. I eat sooo much, and yet still, at almost 15 years old, I'm only 116 pounds. However much I eat (I've been trying to gain weight because I have absolutely no curves whatsoever lol), I don't gain a pound. You probably just have a high metabolism, and just be lucky that you aren't like all the girls who eat one thing and gain like five pounds lol. Have fun eating, but try to keep up a healthy diet and an active life style. Hope this helped :)