,motion sickness like that is worse at night and not associated with positional change. It wakes me up several times every night and keeps me awake. Even though it has some BPPV symptoms, such as dizziness
or vertigo, lightheadedness, imbalance, and nausea I do not believe it is BPPV. 2012 examination by an excellent ENT from Germany ruled out BPPV. 2010 brain/neck MRI were normal. No outside spinning sensation either. Imbalance or dizziness
is NOT worse with a head movement.