If a patient has sudden vertigo in the middle of the night while sleeping, accompanied by nausea and vomiting, the following diseases should be considered: 1. Cerebrovascular disease For patients with acute stroke, acute cerebrovascular insufficiency of blood supply, transient ischemic attack, cerebral infarction, cerebral embolism, cerebral hemorrhage, etc., the above symptoms will be present. 2. Cervical spine disease. For example, severe cervical spine. Inadequate blood supply to the vertebral artery caused by intervertebral disc hyperplasia will also have the above-mentioned conditions.3. Patients with a previous history of diabetes, such as paroxysmal hypoglycemia at night, will have clinical manifestations such as vertigo, nausea, vomiting, weakness, cold sweat and hand tremors in the middle of the night.4. For patients with hypertension, once the blood pressure is too high at night, when the high pressure exceeds 180 mmHg and the low pressure exceeds 120 mmHg, there will be increased intracranial pressure, leading to clinical manifestations of vertigo, headache, nausea, and vomiting.