Question: can vomiting and diarrhea be a sign of the flu?
Answer: The primary symptom of viral gastroenteritis (stomach flu) is diarrhea (non-bloody). Nausea, vomiting, and some abdominal cramping may accompany the diarrhea. Mild fever (about 100 F or 37.77 C), chills, headache, and muscle aches along with feeling tired may occur in some individuals with viral gastroenteritis.