Sudden nausea, vomiting, and sweating all over the body should not be considered as a digestive disease, but also as a cardiovascular disease. First of all, the patient should lie down immediately, then take blood pressure and heart rate to see whether the blood pressure has increased or decreased, and whether the heart rate has increased. Then an electrocardiogram should be done immediately to see if there are any T-wave changes in the ECG and whether there are changes in myocardial ischemia to rule out acute heart attack or other arrhythmias. If the patient has dizziness along with nausea, the patient is advised to have a brain CT to rule out any cerebrovascular disease, cerebral hemorrhage or acute cerebral infarction. If these problems are not present, the blood pressure and heart rate are stable, and the cranial CT is fine, ask the patient for a detailed medical history to see if the patient has recently eaten an unclean diet, has consumed alcohol or spicy food, and has a past history of stomach problems. The patient should be checked for anemia and asked if he has a history of gastric bleeding, which should rule out the presence of gastrointestinal bleeding. In addition, it should be determined whether it is acute gastroenteritis.