Fever, chills, throwing up every hour, can't sleep, not hungry, fatigue. what is this?

Virus: Gastroenteritis causes nausea, vomiting and diarrhea and is usually caused by a viral infection. Fever, chills and muscle aches often occur with the virus. . If your stomach is still queasy keep on a bland diet and try flat ginger ale to settle it. If there is diarrhea cut down on roughage and very hot or cold drinks. You should feel better soon.