One of the many tests I’ve had over the last eight years was a test at Mayo Clinic with the Chair of the ENT Department. They ran multiple tests on me over about four hours, and determined I did not have BPPV but could not identify my problem. I then took a ride on the Epley Chair on another visit, and it was confirmed. I had previous head trauma from the fall in 2015. The nystagmus contributes to my dizziness.