Causes of Vertigo. Vertigo is often caused by an inner ear problem. Some of the most common causes include: BPPV. These initials stand for benign paroxysmal positional vertigo. BPPV occurs when tiny calcium particles (canaliths) clump up in canals of the inner ear.
I think the pain is worse at night because of the activity during the day. I do experience pain at night (and throughout the day off & on). It makes it hard to go to sleep at night plus in the middle of the night the pain wakes me up.
Some people think that their pain is worse at night due to having less distractions, but my distractions are pretty much the same always, so I know that's not a factor for me. I hope you can find a way that works best for you to get the sleep and relief from pain that you need.