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.
This gets straight to the source: sleep regulates your leptin and ghrelin levels (ghrelin is the hormone that tells your body you're hungry). Not enough rest and your body starts producing ghrelin and not producing leptin. So hit the hay in time to get about 8 hours every night.