Why am I vomiting all the time every time I eat?

Vomiting every time I eat. Friends say I could be pregnant?

• Alright, since Sunday night I threw up my dinner, then on Monday at school I didn't eat much lunch, now today came I barely touched my lunch and went out to dinner with my parents, when I got back home I rushed into the bathroom and threw up. I have had nausea since Sunday, and I'm not sure if I'm stressed or I have a stomach bug. I log onto a chat site of where I chat with 2 good friends of mine, and I tell them I threw up, and one of them said "You're pregnant!" I told them I was not pregnant, because I just got off my period like 3 days ago, and of course I am not seeing anyone at all and I've never had sex in my life! So how could I be pregnant. I'm wondering with how sick I've been feeling even to point I'm so scared of eating in school and them vomiting and then being sent home. Is it normal that I feel that way about eating anything? So do you think I'm pregnant, under a lot of stress or I have a stomach bug? I am 18 and in my final parts of my days as finishing up as a senior in high school. I was told by my teacher today that I was a lot under-pressure, with trying to get my power point turned in and trying to finish up school work, but how can stress cause me to vomit every time I eat? I'm worried and would just like to know some questions, and my mom knows about me vomiting and she is an nurse and she says she doesn't know what's wrong with me. I'm really scared.

• Answer:

  you might have cancer