Feeling dizzy may be caused by cervical spondylosis, otolithiasis, infarction of vertebral basilar artery and so on. 1. Meniere’s disease: the disease may be related to heredity, inner ear ischemia and other factors, may appear dizziness and nausea, feel the phenomenon of rotation, may also be accompanied by tinnitus and hearing loss. 2. Otolithiasis: the disease may be related to old age, fatigue, etc., when the position changes, the otolith falls off and causes dizziness and a sense of rotation. 3. Cerebrovascular disease: posterior circulation ischemia, brainstem infarction, cerebellar infarction can appear dizziness, nausea, dizziness and nausea, can also be accompanied by ataxia, speech disorders and other symptoms. When you feel dizzy and nauseous, you should go to the hospital in time to get a clear cause of the disease and then targeted treatment.