Panic attacks, hand tremors and dizziness may be caused by hypoglycemia or by low blood pressure. Hypoglycemia is a common phenomenon, mostly occurring in patients with diabetes. When diabetes is present, it is usually treated with the routine application of glucose-lowering drugs. During the application of hypoglycemic drugs, if the diet is not regular, it may cause hypoglycemia in patients, the main drugs commonly used in clinical practice are gliphenylurea, Repaglinide and insulin, Metformin generally does not cause hypoglycemia in patients. If the patient has hypoglycemia, it should be corrected in time, and can be corrected by oral sugar cubes, chocolate, or if necessary, intravenous hypertonic glucose push. If the patient’s blood sugar is low 3.9mmol/L, it is clinically called hypoglycemia. In some patients with diabetes, if the blood sugar control is poor for a long time, the patient may tolerate hyperglycemia, and if the patient’s blood sugar decreases even when it is greater than 6mmol/L, hypoglycemic reaction may occur and should also be corrected. When the patient has hypotension, it may cause ischemia and hypoxia in the brain and the patient may develop the above symptoms.