Stomach flu symptoms, Stomach virus or gastroenteritis is otherwise known as stomach flu. diarrhea is the major symptom of stomach upset. the other stomach flu symptoms such as vomiting. Norovirus - wikipedia, the free encyclopedia, Norovirus, sometimes known as the winter vomiting bug in the uk, is the most common cause of viral gastroenteritis in humans. it affects people of all ages. the virus. 12 heartburn remedies plus causes & prevention tips, What readers are saying: 36 comments to “12 heartburn remedies plus causes & prevention tips”.