Headache all the time, there are several possibilities as follows 1. If it is vestibular migraine, the duration will not exceed 72 hours, and the pain is mainly manifested in bilateral temporal and posterior occipital areas, with throbbing-like throbbing pain. If it is trigeminal neuralgia, the pain is repeatedly knife-like or discharge-like irritating pain, which is more intense and easily induced when touching certain parts of the face or chewing. 2. Cluster headache, which is also an intense pain, sometimes unbearable, often has a more fixed attack time, fixed at a certain time of the day, repeatedly several times, and the attack is accompanied by redness of the ipsilateral eye, nasal congestion and tearing. If the headache is accompanied by slurred speech, slurred mouth, numbness or weakness of the limbs, brain diseases such as cerebral hemorrhage, subarachnoid hemorrhage, cerebral artery entrapment, and increased intracranial pressure should be considered.