A Stomach Virus, Or Something Else?

I've been sick for five days, but haven't taken any medication other than talenol because my mother says I have a virus and need to wait it out. At first, I was vomiting through thursday, friday and saturday, feeling dizzy, sleepy and with almost no appetite. Then, on sunday, I felt a bit better. Now its monday, and I have to miss another day of school because of painful stomach gurgling, watery stools and constant dizziness! I can't afford to miss anymore class, but I don't think I should go to school sick, so is there any way I can get better, quickly? Thanks VERY much.

Something wierd in my stoumuch is moving up and down when i lay down.