Okay, I'm 15 and a girl. I haven't had any appetite in like a week, and yesterday I had diarrhea. I think this made me dehydrated because this morning I chugged four glasses of water and I don't even have to pee. I'm eating but I still don't have an appetite. I've been eating like 1,000 calories a day because that's all I can stomach. I've lost four pounds. I'm just really scared, should I see a doctor?