It's much worse for me in pg; when non-pg, my "episodes" have become much less common than they used to be. For some reason the pg hormones really trigger it though. Vertigo is just an imbalance in the inner ear fluid - I'd roll over in bed and I guess turn my head just so, trigger it out of nowhere, wake myself by then rolling out of bed and/or vomiting
. It's SO not fun. I've taken anti-vert for this too (haven't tried it when pg though so ask a dr), but basically that just renders you unconscious so you don't have to live with it LOL, doesn't help you actually get up and go on about your day!! Unfortunately just have to wait for it to go away - if that's what it is. Sure sounds like it to me, though. Hope it's gone soon!! Best,
Kenny