Dizziness, nausea, vomiting and insomnia are mainly considered for the following reasons: firstly, it should be considered that they may be caused by plant nerve dysfunction. Patients who usually have irregular life, or patients who have emotional tension and anxiety, are prone to sleep disorders, which cause a decrease in brain function activities of patients, and patients will have such symptoms as dizziness, nausea and vomiting, which are related to brain fatigue without The second aspect is that the patient’s dizziness, nausea, vomiting and insomnia may be caused by insufficient blood supply to the brain and cerebral arteriosclerosis. Patients with a history of diabetes, hypertension, hyperlipidemia, and other underlying diseases can be identified through transcranial Doppler examinations.