In the case of normal blood pressure, if dizziness and headache occur frequently: First, consider phytodysfunction, especially when the sympathetic nerves are overexcited, the patient will have dizziness and headache, mainly neurogenic headache, at this time, usually in the case of excessive mental tension, stress, and poor rest and sleep, when the above clinical manifestations will occur. Secondly, dizziness and headache may also occur in the state of cerebral vascular stenosis, ischemia, and lack of itchiness in the presence of insufficient blood supply to the vertebrobasilar artery. In addition, in patients with hyperlipidemia, because of high blood viscosity, it will lead to increased resistance to blood flow, which will also trigger dizziness and headache. Finally, when the intracranial pressure is increased due to various intracranial pathologies, patients may also experience frequent dizziness and headaches. Therefore, if the blood pressure is normal, the cerebrovascular function mentioned above should be checked to exclude organic diseases.