“The normal blood pressure range of human body is in the resting state, systolic blood pressure fluctuates from 90-140mmHg, diastolic blood pressure fluctuates from 60-90mmHg. so in the resting state blood pressure is 61/102mmHg, in the normal blood pressure range, if dizziness performance, can temporarily exclude the blood pressure abnormalities caused by the situation, consider with cerebral blood supply, cervical spondylosis, otoliths and other factors. 1, cerebral blood supply Insufficient blood supply: exertion, staying up late, postural changes, etc., may cause transient cerebral insufficiency; the presence of risk factors such as hyperlipidemia and smoking may induce cerebral atherosclerosis, resulting in pathological cerebral insufficiency, which may manifest as normal blood pressure, but still appear dizziness, weakness, blurred vision, or even transient limb movement disorders, etc. The diagnosis can be clarified by perfecting cranial CT, cranial nuclear magnetic examination, etc.; 2. Cervical spondylosis: such as vertebral artery cervical spondylosis, the protruding cervical disc compresses the vertebral artery, or may affect the blood supply of the vertebral artery, causing impaired posterior circulation, which may lead to symptoms such as dizziness, nausea, weakness, tinnitus, etc. The diagnosis can be further clarified by perfecting cervical CT and other examinations; 3. Otolithosis: mostly due to the degeneration of otoliths with age, or affected by factors such as trauma, which leads to strong dizziness in patients, which may be accompanied by visual rotation, nausea, vomiting, nystagmus and other corresponding symptoms, which can be helped to confirm the diagnosis by conducting audiological examination, balance function examination and CT or MRI.”