Hypertensive dizziness is identified when the patient presents with a sudden onset of dizziness, which occurs during exertion or emotional stress. Blood pressure may be significantly higher than normal, and the dizziness may improve with oral antihypertensive medication and rest. Patients may also exhibit spinning in the sky, and some may experience nausea and vomiting. This symptom needs to be distinguished from dizziness caused by cervical spondylosis, which occurs when dizziness is usually induced by a sudden rotation of the neck. Blood pressure measurement is usually within the normal range, and a cervical spine film will reveal osteophytes. This is otogenic dizziness, which is manifested as sudden dizziness with deafness and tinnitus. Patients may also experience nausea and vomiting. Blood pressure measurements are normal and the patient is unable to stand upright. Most of them are caused by otoliths, and the symptoms can be relieved immediately by resetting the otoliths.