sorry to hear about your recent bout of vertigo, its so scary when they are severe, its good that it was evident to the doc will he recommend a different neuro? you wonder what sparks them off, do you know what triggers yours?
im still having the eye/brain zaps i try to not let them get my attention but they are hard to ignore i hate it when the cycle of anticipation gets a hold.
i too have been aware of vertigo at times but thankfully hasnt fully kicked in as yours has, even last night as i turned over i could feel it mildly, its enough to get some adrenalin going i feel anxoius for that moment and relieved when it subsides. its been a while since a bad attack but they do occur from time to time and i do sympathise with you, they are vile.
i hope that your are over the worst of it, did they do the test where they lie you back and watch your eyes for nystagmus?
hope you are feeling better please let me know