Headaches, Can't eat, Dizzy, Tired...& more.?

Ok Sunday I stayed awake for 24 hours so when I came home from school Monday I went to bed around 7pm and woke up 7am for school. At school I had semi bad stomach pains, body aches, I was really dizzy, and severly tired, I experiences a headache, as I am right now also. I thought maybe since I have not eaten I was like this so I went to eat. I can't eat ... the food looks unappealing and just looking at it and smelling it gives me that sick feeling. I came home from school early and went to sleep and just waking up asking this. Thank you in advance.