Firstly, if the headache is unilateral and is mainly swelling pain with nausea and vomiting in severe cases, migraine should be considered. Secondly, if the headache is pins and needles or lightning-like headache, neuropathic headache should be considered. Third, if the headache and vomiting are accompanied by very high blood pressure, the headache caused by hypertension should also be considered. Fourth, if the patient has headache and vomiting accompanied by numbness and weakness of the partial body limbs, it is also necessary to be alert to headache and vomiting caused by cerebral hemorrhage, subarachnoid hemorrhage, large cerebral infarction, etc. In the end, it is necessary to go to the hospital to see a neurologist to perform cranial CT or MRI, ambulatory blood pressure monitoring and other examinations to further clarify the cause of the disease.