Usually hungry a little shivering, there are the following 4 major causes of disease: first, common disease for hypoglycemic reaction, in low blood sugar, such as patients with symptoms of starvation, blood glucose is usually less than 3.9mmol / L, at this time there will be shivering, chills, chills, dizziness, hand tremors, panic, palpitations and other symptoms, the serious cases will also be accompanied by sweating profusely. Second, shivering is common after a little bit of hunger, such as pre-diabetes when fasting blood glucose impaired period, easy to occur fasting palpitations, panic, accompanied by shivering symptoms. Third, hyperthyroidism, when the hyperthyroidism will produce the body’s basal metabolic rate is too fast, the metabolic rate is too fierce, so it will make the sugar metabolism speed is too fast, so hungry a little bit will palpitation, shivering. Fourth, rare diseases, such as adrenal pheochromocytoma will also occur after hunger chills, shivering symptoms.