Vertigo is a feeling of movement or spinning when you are still.
Benign paroxysmal positional vertigo (BPPV) happens when the
vertigo is caused by changes in the position of the head. This
might include standing after bending down, turning the head in
bed, or extending the neck to look up. People with BPPV can
often identify which moves cause the most problems. The inner
ear contains tiny crystals. These crystals can sense movement
and help you keep your balance. BPPV occurs because of a shift
in location of these crystals or the clumping of these crystals.
When this happens, your brain gets signals that you are moving
when you are really not moving. This causes the feeling of
movement. In some cases, the cause of BPPV is unknown. In
others, it may be caused by: - Head injury - Viral infection -
Disorders of the inner ear - Prolonged immobility of the head -
Age-related changes to inner ear Symptoms may include: -
Sensation of spinning or rotation when you change head position
that last less than one minute -