Dizziness from hunger may be caused by hypoglycemia, which may cause hypoxia in the brain when the patient’s blood sugar is lowered. Patients may experience dizziness, nausea, vomiting, balance disorders and ataxia when the cerebellum and brainstem are hypoxic. In the case of cerebral hypoxia, it usually manifests as blackness in front of the eyes, or there may be blurred vision, or there may be limb sensory impairment or motor dysfunction. Some patients may exhibit aphasia and dysarthria, which should be corrected by timely oral administration of sugar cubes, sugar saline, desserts, and cookies. In case of severe hypoglycemia, hypertonic glucose can be pushed intravenously for rapid correction. If the blood sugar of diabetic patients is lower than 3.9mmol/L, it is clinically called hypoglycemia. Severe hypoglycemia may also cause hypoglycemic encephalopathy, and even can also endanger the life of the patient, so the blood sugar should be monitored in time. In general, you should have three meals a day, eat regularly, and not be overly hungry.