Is something wrong with me?

All I've had all day is half a bagel and a pretzel it's 7:20 at night. I have a really bad stomach acke. But it's not hunger pains it's cramps. I've made myself throw up twice before but I don't know it that has anything to do with it. I've been really spaced out lately. And extremely depressed I've had some trouble with my home life. So I tend to self destruct. Should I talk to my doctor? Do you think these are related? I've been having random pains. What's wrong with me?