Vikki, I think the name is sometimes inappropriate.
For some people this may be a 'central' condition, but for a lot of people on this board it is highly likely its something to do with the inner ear. I mean, almost anything to do with 'dizziness' has something to do with the inner ear, even if indirectly.
I note that you can get migraines from having a Perilymph Fistula, BPPV, SEH or Menieres. Or just 'ear trouble'.
I've only been diagnosed as having Migrainous Vertigo, but that doesn't really fully explain my symptoms.
I think I have some blend of a BPPV & Hydrops condition. I still get vertigo attacks despite being on an effective prophylactic that has eliminated the migraines. I'm absolutely sure the remaining attacks I have are not migraines (but would be worse but for the medicine) and they aren't Menieres like either because I don't get fullness nor dulled hearing.
Having said all that my attacks ceased for 6 months after starting Amitriptiline. Like I reported i've had only 1 major attack since and prior to taking this drug I was having 1 every two days for 2 or 3 weeks. Things have definitely got better!!
On the bright side I now have fewer attacks than I used to have hangovers!!