Welcome to the board and the community. Sorry you are dealing with this crp too.
The majority of the sufferers on here appear to get some level of positional vertigo if this poll is anything to go by:
Suffice to say, MAV sufferers often get positional vertigo.
That tells me MAV is not simply a migraine complaint and there is something else going on too, but apparently my views are controversial 
That said, the absolutely best thing for you to do is investigate the treatment options for ‘MAV’, starting with the diet and failing that the meds, but of course all this has to be discussed with and directed by your doctor. I started out trying to cope without meds but was hit with terrible migraines which forced my hand.