A normal CT for dizziness and headache may be a combination of diseases that cannot be detected by CT, such as migraine, hypertension, and tension headache. It is also possible that the resolution of CT is not enough, which can be further examined by cranial nuclear magnetic resonance. In either case, it is important to consult a doctor in time to clarify the cause of the disease and then treat it. 1. Migraine: patients will have recurrent severe headaches on one or both sides, which may be accompanied by dizziness, nausea, fatigue and other symptoms. 2. Hypertension: Patients with high blood pressure will also have headache and dizziness, fatigue, palpitations and other symptoms due to the high pressure of blood on the walls of blood vessels. 3. Tension headache: this disease is caused by head muscle or myofascial contraction or ischemia, inflammatory mediator release and other triggers, but also depression, anxiety and other factors. Performance for persistent head discomfort, such as throbbing pain, throbbing pain, pulling pain, and pain in the back of the occipital region, both sides of the temple and other parts of the head, some patients will also appear dizziness performance. In addition, physiological reasons such as lack of sleep, mental stress and other factors can also cause dizziness and headache, but the head examination is normal. It is recommended that patients with dizziness and headache consult a doctor in a timely manner to clarify the cause and then target treatment.