Sudden onset of dizziness, vomiting and generalized weakness needs to be analyzed in relation to the patient’s underlying disease and whether there are other accompanying symptoms in addition to dizziness, vomiting and generalized weakness. If the elderly have cerebral arteriosclerosis, cerebral blood supply insufficiency patients, sudden onset of dizziness, vomiting, general weakness, may be the posterior circulation ischemia, or cerebral vascular spasm caused by the hospital to do the intracranial segment of the vascular ultrasound examination to clarify the condition; and the past patients with Meniere’s disease, if suddenly reoccur dizziness, nausea, vomiting, accompanied by tinnitus, ear boredom, the symptoms, considering Meniere’s disease If the symptoms of dizziness, nausea, vomiting and generalized weakness are caused by change of body position, it may be caused by benign paroxysmal positional vertigo.