Dizziness, nausea, want to vomit, sweaty palms, mainly consider the following aspects of the cause: 1, to consider may be the nature of neurological weakness caused by, if the patient is in the late night, lack of sleep long-term mental tension, anxiety, depression, may appear somatic. Symptoms patients will have dizziness, nausea, want to vomit, sweaty palms, but some tests will not have problems found; 2, patients dizziness, nausea, want to vomit, sweaty palms, may also be the reaction of hypoglycemia, mainly seen in patients with diabetes, or some patients in order to lose weight irregular diet is prone to; 3, to consider may be due to cerebral vascular spasm, cerebral blood supply deficiency, this category Patients mostly have the basis of cerebral atherosclerosis, when the case of exertion, rest is not good, it is easy to appear the aggravation of symptoms.