Sudden dizziness and sweating have the following causes: 1, hypoglycemic reaction, mostly seen in long-term starvation or diabetic patients over-application of insulin, hypoglycemic drugs, low blood sugar insufficient supply of energy required by the body, mostly accompanied by weakness at the same time. 2, cerebral infarction, lacunar cerebral infarction, degenerative changes in the cervical spine, insufficient blood supply to the basilar artery, narrowing or blockage of blood vessels in the neck and other lesions. It leads to ischemia and hypoxia in the patient’s brain and impaired neurological function of brain balance, mostly accompanied by nausea and lack of limb movement.3. In patients with Meniere’s syndrome, when there are triggers such as emotional excitement and staying up late at night, the patient’s inner ear vagus circulation dysfunction and impaired inner ear balance function mostly accompanied by visual rotation.4. In patients with otoliths, when the body is turned to a specific body position, the patient will experience dizziness and sweating, and when When the body is transferred to another specific body position, the patient’s symptoms will be relieved.