Does it feel like you're spinning or the room is moving around you?
Maybe you are dying.
Maybe you need to drink some water.
A false sense of motion
An illusion of movement
A range of sensations
You may describe it as whirling
Children spin and spin and spin on purpose to feel the sensation, their mothers saying, "Stop! You're going to get hurt!"
It's unsettling and unpleasant.
The body, believing itself ill and infected, attempt to purge.
Try lying down.
Try flinging yourself backwards upon a bed.
Try playing the bare essence of everything.
Try closing your eyes.