Tummy pain and nausea may be due to acute gastroenteritis, hypoglycemia and cerebrovascular disease. 1. Acute gastroenteritis: mostly due to intestinal infections caused by unclean diet, because the patient’s intestines and stomach in the inflammation of the stimulus, intestinal peristalsis, intestinal lumen pressure, there may be nausea, vomiting, stomach pain, diarrhea and other symptoms, when diarrhea caused by dehydration, there will be a weakness in the limbs. 2. Hypoglycemia: a common endocrine disease, when patients do not eat for a long time, there may be stomach pain, weakness and nausea. 3. Cerebrovascular disease: if such patients are overstressed or have elevated blood pressure, they may suffer from cerebral hemorrhage, which may lead to abdominal discomfort, weakness of limbs, and nausea and vomiting. Therefore, it is recommended that patients go to the hospital in time for relevant examinations to determine the cause of the disease and then treat it.