Dizziness, tinnitus and sweating may be hypoglycemia, which is more common clinically and can be seen for a variety of reasons, such as the patient’s usual weakness and irregular diet, for example, not eating breakfast, which can easily occur. If the patient suffers from diabetes, certain hypoglycemic drugs may easily cause hypoglycemia, common drugs include glibenclamide, regeneronide, insulin, metformin generally does not cause hypoglycemia, so during the application of hypoglycemic drugs must be regular diet, if necessary, the patient’s blood sugar should be monitored, if it is lower than 3.9mmol/L, clinically known as hypoglycemia, should be given to correct, can be appropriate oral sugar saline, chocolate, and in case of severe hypoglycemia, glucose should be pushed rapidly.