One of the most common types of dizziness is Benign Paroxysmal Positional Vertigo (BPPV), which can cause the sensation of spinning, vertigo, nausea and/or imbalance that lasts for seconds or minutes. These symptoms are triggered by head movements or rolling over in bed. This is caused by calcium carbonate crystals (ear rocks, small marbles) inside the inner ear moving to areas where they don’t belong. A qualified physiotherapist uses specific maneuvers of moving the head into certain positions to return these crystals back to the chamber where they should be. These treatments are very effective in most cases.