Stomach Bug Symptoms 2024. It can be very unpleasant, but usually goes away in about 2 days. Viral gastroenteritis is an intestinal infection that includes signs and symptoms such as watery diarrhea, stomach cramps, nausea or vomiting, and sometimes fever.
The main symptom of gastroenteritis is diarrhea, which may be accompanied by nausea and vomiting. Often wrongly called the “stomach flu,” norovirus sickens tens of millions of americans annually.
