Having the world spin in front of your very eyes can be disturbing and upsetting. It can be downright dangerous if you’re standing on a stool or ladder when it happens. How about if you roll over in bed and everything starts moving, or if the feeling happens when you tip your head back to wash your hair in the shower? You may have BPPV or Benign Positional Vertigo. BPPV is position dependent, which means it occurs when you move your head into certain positions (rolling over in bed, tipping your head up or down, laying down in bed or getting up from bed are the usual culprits) and an intense feeling of spinning is the result. The spinning usually lasts for less than one minute, but you can feel unsteady, imbalanced or nauseous for hours afterwards. Positional vertigo is the result of crystals (otoconia) that occur naturally in one part of your inner ear moving into one of the semicircular canals of the inner ear. The feeling of spinning occurs when these crystals disturb the liquid in the semicircular canal making you feel like you are moving when you’re not. Positional vertigo is most often seen in individuals over the age of 50 or in people of all ages after head trauma (falls, concussion, etc). Assessment by a trained vestibular physiotherapist can determine if you suffer from BPPV, and treatment a series on non-invasive head positioning is 90% effective after 2 sessions.