The symptoms of stomach pain, diarrhea, also want to vomit, the following common causes: 1, caused by improper diet gastrointestinal dysfunction, indigestion, resulting in stomach pain, diarrhea, also want to vomit symptoms. For example, eat a lot of too cold food, unclean food, or a lot of spicy, irritating food, at this time to pay attention to the diet regulation, to light, easy to digest diet, such as millet porridge, yam porridge, noodles, etc.. Avoid strong tea, coffee, tobacco, alcohol, etc., which can stimulate the gastrointestinal tract and make diarrhea symptoms worse. You can take oral simethicone, montelukast, etc., together with drugs that mediate intestinal probiotics, such as whole intestine, Pefixan, etc. 2, acute gastrointestinal caused by bacterial or viral infections, can also appear this symptom, it is recommended that at this time should go to the hospital to do routine blood and stool tests, and give antibiotic treatment after a clear diagnosis, such as flavopiridol, haloperidol, etc.