Sudden dizziness and nausea at night may be related to otolithosis, or may be caused by cervical spondylosis and posterior circulation ischemia. In terms of treatment, it is mainly to carry out otolith reset treatment and apply relevant therapeutic drugs for the original disease.
1. Otolithiasis: If the head position changes drastically due to a sudden turning over during the night, the otoliths may easily fall out into the semicircular canals, and symptoms such as dizziness, spinning, nausea, etc., may suddenly appear. Generally, no special intervention is needed. If the symptoms are serious, otolith resetting treatment can be carried out by the doctor.
2. Cervical spondylosis: commonly seen in vertebral artery type cervical spondylosis, due to the vertebral artery traveling in the transverse foramen of the cervical vertebrae is stimulated by the pressure, resulting in the vertebral artery to produce a transient spasm, there will be a sudden dizziness, rotation, nausea, etc., and may be accompanied by walking unsteadily, numbness of the hands and feet and other symptoms.
3. Posterior circulation ischemia: usually caused by atherosclerosis, embolism, resulting in narrowing of blood vessels in the posterior circulation of the brain, or thrombosis within the blood vessels, resulting in ischemia of the brain tissue, which may cause sudden dizziness in bed at night, dizziness, nausea, accompanied by weakness of limbs, numbness of the head and face and other symptoms.
Sudden dizziness and nausea at night, may also be caused by other reasons, if the symptoms continue to be unable to alleviate, should seek medical advice as soon as possible, after diagnosis of the cause of targeted treatment.