The following diseases should be taken into account if the patient presents with sudden weakness accompanied by vomiting: 1. Patients with a previous history of diabetes mellitus will have false sweating, vomiting, dizziness, palpitations, and hand tremors when they are hypoglycemic. In addition, for diabetic ketoacidosis hyperosmolar coma, lactic acidosis will also have the above clinical symptoms. 2, in ionic disorders such as hypokalemia, hyponatremia will also have sudden onset of peripheral weakness and vomiting. 3, patients in serious infections, such as bacteria, viruses or other pathogenic microorganisms invade the body, will also lead to the above clinical symptoms. 4, in patients with obvious heat stroke, such as heat cramps after heat stroke. For example, heat stroke leading to heat cramps, heat exhaustion, and pyrexia may also cause the above clinical symptoms.