Sudden hunger and panic sweating may be caused by hypoglycemia, anemia due to blood loss, insulinoma and other reasons. 1. Hypoglycemia: low blood sugar will cause sympathetic nerve excitation and increased adrenaline secretion, which will lead to panic, generalized sweating, shivering of limbs and other symptoms, which is a kind of protective mechanism of the body. 2. Anemia caused by blood loss: When acute blood loss occurs, the effective blood volume of the body will decrease, which may cause panic, dizziness, sweating and other symptoms. 3. Insulinoma: tumor cells of insulinoma will produce a large amount of insulin, and excessive insulin will lead to episodes of hypoglycemia, and at the same time will lead to sympathetic excitation, which will lead to hunger, sweating, panic, irritability and other symptoms. If the symptoms of sudden hunger and sweating are not relieved, or accompanied by other symptoms, you should go to the hospital in time, and give targeted treatment after clarifying the cause.