My ENT testing from a local teaching hospital has been completed.

My rotary chair test showed normal function of the balance system in the ear and ear nerve pathway. The VNG test showed no signs of an inner ear problem. It did show "up-beating" nystagmus which is an indication of a central, or brain, balance dysfunction.

So I guess that my diagnosis is most likely central vestibular disorder or problem in the brain balance system. I've already had a MRI. So I, for the life of me, am having a hard time understanding what the etiology could be. This is so frustrating!