Question: what does it mean when you vomit and have diarrhea at the same time?
Answer: Vomiting (throwing up) and diarrhea (watery bowel movements) are common symptoms of gastroenteritis. Gastroenteritis is the inflammation and irritation of the stomach and intestines. Vomiting and diarrhea can be harmful, because they can cause dehydration. Dehydration occurs when you lose too much fluid.