Differential diagnosis of headache: (1) Neuropathic headache: headache mainly caused by mental and emotional factors or various stresses, such as common neurotic headache, hysterical headache, depressive headache, tension headache (also called myoconstriction headache), headache caused by anxiety disorder, etc. This kind of headache is mostly accompanied by various neuropsychiatric symptoms, such as panic, shortness of breath, anxiety, insomnia and forgetfulness, etc. This type of headache has a long course, and the headache lasts longer than the time without pain, but the headache is mild to moderate. (2) Post-traumatic brain injury headache: headache is the main symptom, but there are also dizziness, fatigue, insomnia, mental tension, easy agitation, inability to concentrate and memory loss. The headache is mostly on the side of the injury and can be accompanied by tenderness. The nature of the headache can be pulsating or heavy pressure, mostly persistent, and often intensified by mental factors, physical effort, sound, sound and light stimuli. The patient behaves much like an agitated depressed patient. The severity and duration of the headache do not correlate with the degree of head injury. The neurological examination was normal and there were no abnormal findings on EEG, CT or MRI scans. It may be related to shock, fear, and thought apprehension.