The main causes of dizziness and headache are: a. Hypertension, hypertension is a common disease, if the blood pressure control is not stable can cause dizziness, headache and other uncomfortable symptoms. Second, acute upper respiratory tract infections, acute upper respiratory tract infections are mostly common with viral infections, which can cause dizziness, headache, nasal congestion, runny nose, fever and other symptoms. Insomnia: long-term insomnia can cause symptoms of insufficient blood supply to the cerebral arteries, dizziness, headache and other symptoms. Cerebrovascular diseases: cerebral infarction and cerebral hemorrhage can cause symptoms such as dizziness, headache, numbness of the limbs and activity disorders. Heat stroke: working in a hot environment can cause heat stroke, headache, dizziness, fever, vomiting and other symptoms. Other diseases include glaucoma, cervical spine disease, etc. It is best to go to the hospital to check blood pressure, blood lipids, etc. to further confirm the diagnosis.