Lying down and feeling the sky spinning is usually not cerebral vasospasm, may be benign positional vertigo, posterior circulation ischemia, cervical spondylosis and other causes.
1. Cerebral vasospasm: cerebral vasospasm is usually caused by emotional excitement, meningitis, subarachnoid hemorrhage and other factors, resulting in intracranial vascular stimulation, resulting in persistent arterial contraction. If the contraction of blood vessels is the vertebral basilar artery, can cause a sense of rotation, but generally with the position of the relationship is not great, lying down feeling rotation is generally not cerebral vasospasm.
2. Benign positional vertigo: If you suddenly turn over when lying down, resulting in a sudden change of head position, it is likely to cause otoliths to fall off, and you may feel the sky spinning.
3. Posterior circulation ischemia: The attack is usually caused by factors such as narrowing of the blood vessels in the posterior circulation or formation of blood clots in the blood vessels. If there is ischemia in the posterior circulation, the slowing down of blood flow in the body while lying down is likely to aggravate the ischemia in the posterior circulation, which may lead to the sensation of torsion of the sky and the earth.
4. Cervical spondylosis: If you suffer from severe cervical spondylosis, improper posture while lying down is likely to lead to localized vascular compression, resulting in insufficient blood supply to the vertebral basilar artery, which may lead to the sensation of torsion of the earth.
Lying down feeling heavenly rotation, should be taken seriously, as soon as possible to seek medical attention.