Patients with headache, nausea, vomiting and always want to sleep are mainly seen for the following reasons: 1. Upper respiratory tract infection: ask the patient if there is any recent upper respiratory tract infection, if there is fever. There is no history of hypertension and diabetes, there is no traumatic brain injury, to conduct cranial CT, magnetic resonance examination, to understand whether there is cranial hemorrhage, large cerebral infarction. 3, intracranial infection: to ask the patient whether there is fever, there are no psychiatric symptoms, limb twitching, to conduct cranial magnetic resonance, lumbar puncture examination, to understand whether there is intracranial infection.