Hi Amy,
Nancy gave some great information, but in case you haven't yet gotten any relief, I thought I would share my experience with vestibular migraine or migraine with vertigo. I started with a severe vertigo episode after what I thought was a sinus infection, doctors said no, about 10 years ago. After that I continued with mild episodes of vertigo and sinus infections, or so I thought. What I thought was a sinus infection due to ear and teeth pain with nasal pressure probably was a form of migraine. I had another bad episode of vertigo 6 years ago. Then when I approached menopause, the migraines hit with force. About 4 years ago, I started with daily headaches that if I didn't take my treatment, 6 oz of a drink with caffeine and 3 Tylenol tablets, within an hour I couldn't function - I had severe pain and everything would spin. I was teaching seventh grade at the time. Occasionally, I only had vertigo, but it was debilitating, so my primary care doctor setup appointments with an ENT, brain MRI, and neurologist. I some temporary relief from vertigo by doing the Epley Maneuver with the ENT. The neurologist said I was having rebound headaches because of my treatment with caffeine and Tylenol, so he wanted me to take nothing for the migraines for 6 weeks except to start on magnesium and using lavender and peppermint oils. It was a very rough six weeks. I had to go home early the first week as I couldn't make a full day teaching. The students were wonderful, but I left at the end of the school year.
I have since been seeing an otoneurologist who specializes in vestibular/balance disorders and headache disorders. He started me on vestibular therapy, which is a form of physical therapy to retrain the brain to listen to all senses for balance. At first I left those sessions feeling worse and had to take my abortive before the session to prevent a migraine, although the vertigo tended to be worse. Many people give up on this type of therapy for that exact reason. I also had to have a ride to each session which was 30 minutes from my home. I started wearing sea bands to help with the nausea on the ride home. I still take a daily preventive, go to therapy sessions once a month, but I do my series of exercise daily, and I get a migraine episode (sometimes vertigo and pain, sometimes just one or the other) twice a month. This is fabulous and my doctor thinks it would be better than that if I didn't have the stress of a terminally ill husband.
I didn't mean this to be so long, sorry about that. I hope you were able to get something that will help you.
Good Luck!