Dizziness, dizziness and nausea are very common symptoms, the specific causes of which should be analyzed in conjunction with the patient’s onset triggers and the degree of dizziness and dizziness and relief. 1. It occurs when the patient stays up late and does not have enough rest. If the patient has poor sleep, pay more attention to rest and observe whether the symptoms can be improved. 3. If the patient is an elderly person, symptoms of dizziness, head swelling and nausea may be caused by insufficient blood supply to the brain. If the degree of dizziness is heavy, accompanied by unstable walking, consider the cerebellum and brainstem parts of the lesion, such as cerebral infarction, cerebral hemorrhage caused.