10 Ways Motion Sickness Could Indicate Serious Health Problems

4. Benign Paroxysmal Positional Vertigo (BPPV)

While there are more than a dozen different balance disorders, benign paroxysmal positional vertigo (BPPV) or positional vertigo is one of the most common. It is characterized by an intense and brief episode of vertigo or dizziness triggered by changing the position of the head. People with BPPV may feel like they are spinning when they bend down, tilt the head, or even roll over in bed. It occurs when a structure in the vesicular system called the cupula sends the wrong information to the brain, causing vertigo. It may occur due to aging or a brain injury.