if you are not able to drink fluids and keep vomiting or having diarrhea seek medical help. watch for these symptoms which warrant immediate medical attention: sleepiness or fatigue. blood in the stool or in the vomit. vomiting that continues for more than 48 hours. fever higher than 101f. abdominal pain in the lower right part of the abdomen or abdominal swelling. dehydration marked by little to no urination extreme thirst dry mouth and lack of tear production. typically the worst of the gastroenteritis symptoms are over in a day or two says david burkhart md a staff physician at the indiana university health center in bloomington. "most of the vomiting and diarrhea is the worst for the first 24 to 48 hours " he says. ''usually within three to five days the symptoms are pretty much gone depending on the severity and the causative agent. "
should i call my doctor about my gastroenteritis?