The symptoms of dizziness, nausea, vomiting, weakness of limbs and stomach pain are mostly considered to be caused by early pregnancy reaction, acute gastroenteritis and heatstroke, which can be checked at the hospital and the following treatments can be carried out after the causes are identified: 1. Heatstroke: It mostly occurs in environments with high temperature or humidity and impermeability, and patients mostly show dizziness, nausea, vomiting, weakness of limbs, accompanied by burning skin, heavy sweating and lack of concentration. Some patients may suffer from stomach pain. Lighter cases need to be removed from the hot environment, moved to a cool place, timely ventilation, cooling, supplemental saline, a short time to recover. In severe cases, you need to seek medical attention, doctors will treat according to the severity of heat stroke, such as dehydration and electrolyte disorders, intravenous saline infusion and replenishment of lost electrolytes, daily life to drink more water, light diet, try to avoid the high temperature environment; 2, early pregnancy reaction: if women of childbearing age usually regular menstruation, now menstruation has been delayed for 7 days or more, accompanied by dizziness, nausea, vomiting, weakness of the limbs, and even stomach pain. If a woman of childbearing age has a regular menstrual flow for 7 days or more, accompanied by dizziness, nausea, vomiting, weakness of the limbs and even stomach pain, it is mostly considered as early pregnancy reaction. It is recommended to go to the hospital to draw blood to check the blood HCG value, and you can also buy early pregnancy test paper for testing. It is necessary to improve the routine stool and stool culture examination to clarify the type of bacterial infection, and choose anti-infective drugs to control inflammation and relieve gastrointestinal discomfort by combining with drug sensitivity results. If dehydration is serious, oral rehydration salt solution or intravenous rehydration can be given as prescribed by the doctor to avoid water and electrolyte disorders. 4, other: acute cholecystitis, pyloric obstruction and other diseases may cause related symptoms, which need to be treated promptly after perfect examination.