I think I have stomach virus. I ate this morning feeling just fine, then when I got to school, I felt like I had to.. um, poop.. and then I started to throw up. I thought I would be okay after that, but all the way until lunch i still felt like I was bout to throw up, and I almost did, but I stopped myself. then we had lunch, I thought I was fine, but after 10 or so minutes, I felt like had to use the bathroom again, then threw up 3 or 4 times. .
Vomiting, cramps, and diarrhea — and everything else you described.
Slip clear, room temp liquids, 30 minutes after the last time you vomit. then slowly progress onto eating bland foods such as oatmeal, bananas, toast, rice, broth, etc…. and once you keep these down – then move onto more solid foods.
Rest your stomach, try and get some sleep, and tell mom or dad. you need to stay hydrated and if you cannot keep fluids down for more than a few hours – tell mom or dad. Dehydration is dangerous and is common when you don't eat or drink following an episode of vomiting.
Hope you feel better soon.
Well, that certainly sounds like text book stomach virus/flu. If it lasts more than 3 days, see a doctor. If you start having lower back pain, it could be Kidney stones, see a doctor immediately in this scenario.
If you defecate blood seek help