If the patient is sleeping in the middle of the night suddenly vertigo, accompanied by nausea, want to vomit, to consider the following diseases: 1, cerebrovascular disease for acute stroke, acute cerebrovascular blood supply insufficiency, transient cerebral ischemic attack, cerebral infarction, cerebral embolism, cerebral hemorrhage and so on, will have the above symptoms. 2, cervical spondylosis. For example, severe cervical spine. Insufficient blood supply to the vertebral artery caused by disc hyperplasia, will also have the above situation.3. Patients with a previous history of diabetes mellitus, such as paroxysmal hypoglycemia at night, will have clinical manifestations such as vertigo, nausea, vomiting, fatigue, cold sweating, hand tremor, etc., in the middle of the night.4. For patients with high blood pressure, once the blood pressure is too high at night, with a high pressure of more than 180 mm Hg and a low pressure of more than 120 mm Hg, it will have an Increased intracranial pressure, resulting in clinical manifestations of vertigo, headache, nausea and vomiting.