Sudden disorientation and nausea mainly appear as a sense of dizziness and lightheadedness, and if there is vertigo there will be nausea and desire to vomit. You need to look for the causes of dizziness: 1. To consider whether there are abnormalities of blood pressure and blood sugar. Low blood pressure can cause dizziness, unstable standing, and then sympathetic excitement and sweating. Patients with diabetes have a drop in blood sugar due to hunger or overdose of medication, which can manifest as dizziness and body sweating. 2. Sympathetic cervical spondylosis can cause insufficient blood supply to the brain, dizziness, vertigo, shoulder discomfort, accompanied by body sweating. 3. You need to consider cerebrovascular accidents, such as cerebral infarction and cerebral hemorrhage, which can also occur Dizziness with sweating. 4. Ear diseases, such as Meniere’s syndrome, otoliths, etc., can occur. Repeated prolonged severe dizziness and nausea should not be taken lightly and should be treated by a hospital in a timely manner.