Viral gastroenteritis is an inflammation, swelling, and irritation of the inside lining of your gastrointestinal tract. A virus causes this illness. It can infect your stomach, small intestine, and large intestine.
Viral gastroenteritis is very common. In most cases, it lasts only a few days and doesn’t require treatment. The biggest danger is dehydration from loss of fluid due to diarrhea and vomiting. Symptoms of gastroenteritis usually begin one or two days after infection and include:
diarrhea
nausea and vomiting
headache, muscle aches, or joint aches
fever or chills
sweating or clammy skin
abdominal cramps and pain
loss of appetite