Hypoglycemia, vomiting and dizziness need to replenish sugar in time, you can drink sugary drinks, eat cookies, chocolate, etc. At the same time, you need to clarify the cause of the disease, which may be related to the lack of energy of the organism, medication factors, insulinomas and other reasons, such as diabetic patients with hypoglycemia caused by improper use of medication can be adjusted medication. 1. Insufficient body energy: long time without food, the body glucose concentration decreases, the brain almost completely rely on glucose for energy supply, hypoglycemia will lead to insufficient supply of energy to brain cells, causing vomiting, dizziness and other symptoms. It is necessary to replenish sugar in time, such as drinking sugar water, eating cookies or chocolate and other foods to relieve hypoglycemia. 2. Drug factors: Hypoglycemia can occur when diabetic patients use inappropriate dosage of hypoglycemic drugs, it is recommended to adjust the drugs under the guidance of the doctor. 3. Insulinoma: insulinoma can secrete too much insulin, which can make the patient’s blood sugar decrease and cause dizziness, vomiting and other hypoglycemic symptoms, which need to be diagnosed under the guidance of doctor, and surgical treatment if necessary. Hypoglycemic vomiting, dizziness should be supplemented with sugar in time, if not relieved, it is recommended to go to the hospital, under the guidance of the doctor for treatment.