Hungry, hungry, hungry

Hi. I'm a 14-year-old female and I am hungry a lot and keep eating, but am still hungry. No one else in my family seems to eat as much as I do. I have a healthy weight, but it has been getting higher. I used to eat less so I could loose weight, which I know is wrong, but now I eat whenever I am hungry, which has been lately, a lot more than it used to be. Protein really doesn't fill me up that well either. I don't know what to do and what's wrong with me.

Maybe you should get checked for an ulcer, since that is a symptom