Marg, I will search out a neurologist. I have had more testing of the ears and nerves than you would believe. I was 15 when I started getting occasional vertigo. It has never stopped, no medication has ever helped, or hurt. But NO ONE did this test!!!!!!
It bugs me when I find a simple test for a problem that has a big impact on my life. And realize NO ONE ever tried it.
Thanks so much for the info.
Susie