Headache, headache, insomnia and vomiting may be caused by cerebrovascular disease, migraine and intracranial infection. 1. Cerebrovascular disease: If you suffer from cerebrovascular disease, such as cerebral vascular stenosis or cerebral arteriosclerosis, etc., it will affect the blood circulation in the brain, which will cause headache, headache, insomnia, vomiting and other uncomfortable symptoms. 2. Migraine: If you have too much mental stress for a long time or lack of sleep, it may cause migraine, leading to local nerve stimulation, thus causing headache, headache, insomnia, vomiting and other symptoms. 3. Intracranial infection: If there is a bacterial or viral infection in the skull, it will lead to intracranial stimulation, which may induce patients to have headaches, swelling, insomnia and vomiting, and even fever and other symptoms. It may also be caused by other reasons, it is recommended to go to the hospital as soon as possible to do a checkup, clear cause and timely treatment.