- A brief attack of severe dizziness usually for about 10 to 30 seconds, that comes on a few seconds after a certain head movement.
- Quickly subsiding dizziness--- it is a self-correcting problem.
The changing position that provoke an attack can be;
- Titling the head backwards
- Changing from lying to a sitting position
- Lying on one side
- Turning the head to the side
- Rolling over in bed
