Nausea, vomiting, dizziness, what's wrong?

Nausea, vomiting, dizziness should be caused by insufficient blood supply to the brain tissue discomfort, more common in patients with cerebral arteriosclerosis, cervical spondylosis. Secondly, if the patient has acute gastrointestinal infection, there may be similar situations. You can go to the hospital to do head ct, blood tests, etc., clear diagnosis.