Vertigo is a specific medical term used to describe the sensation of spinning without moving or having one’s surroundings spin about one.

Medical science differentiates between two modes of dizziness, the actively induced dizziness caused by the use of alcohol or other substances which reduce the brain to its oldest part, the brain stem. The reflexes could be construed as being the passive mode. When we stagger, our body does not refer to the brain, but to the spinal cord that orchestrates our reflexes. In falling, a reflex puts our hands in front of us, in this situation we are not consciously self-determined, but more like a flower closing its petals at night.

‍Curing Vertigo with the "Dizzy Chair" - Alvarado Hospital