Stomach flu, or viral gastroenteritis, is an infection that makes your stomach and intestines feel sick. It’s usually caused by a virus, not the flu virus.
Common signs of stomach flu include:
You can catch stomach flu by being around someone who is infected, eating contaminated food, or drinking dirty water. It often goes away on its own in a day or two, but it’s important to drink plenty of fluids to stay hydrated. If symptoms are very bad or last longer than a couple of days, you should see a doctor.