Headache, thirst, and dry mouth may be related to intracranial lesions. If there is hemorrhagic cerebrovascular disease, severe headache, vomiting, and dizziness may occur. Diseases such as hypertension, hyperlipidemia and cerebral blood supply deficiency may also cause headache, and head CT, blood pressure and blood lipid tests can be done. If you have brain hemorrhage, you can treat it with drugs that lower intracranial pressure such as mannitol, drugs that nourish brain cells, and drugs that stop bleeding. Cerebral infarction should be treated with blood vessel dilating drugs such as hemosiderin, drugs to lower blood pressure, and drugs to lower blood lipids. Symptoms of headache, thirst, and dry mouth may also be related to blood sugar or poor sleep, or high room temperature. If you have diabetes, you should take drugs such as metformin to lower blood sugar or inject insulin to treat it, and keep the indoor air fresh and the temperature and humidity appropriate.