Symptoms of Viral Gastroenteritis

The main symptoms of viral gastroenteritis are watery diarrhea and vomiting. Other symptoms are headache, fever, chills, and abdominal pain. The symptoms may appear within hours or a few days of infection. They usually last for 1 to 2 days, but may last as long as 10 days.

source: http://digestive.niddk.nih.gov/ddiseases/pubs/viralgastroenteritis/index.htm