Dizziness, nausea, vomiting and sweating are mostly caused by various reasons such as hypoglycemia, hypotension or hypertension, transient ischemic attack, cerebrovascular disease, inadequate blood supply to the brain due to compression of blood vessels by cervical spine disease, vestibular neuropathy, heart disease, and stomach disease. Because the cause is complex, it is best not to use drug treatment indiscriminately before the condition is clearly diagnosed, so as not to cover up or delay the condition. You can drink the right amount of sugar water, lie down and rest for a while, generally can make the symptoms are relieved, at the same time to the regular public hospital internal medicine, do head CT, digestive system ultrasound, brain Doppler, cervical spine CT, electrocardiogram, blood glucose and lipid tests, blood pressure measurement and other tests, clear diagnosis to identify the cause, by the specialist to take the appropriate treatment for the cause.