I am dealing with the same exact symptoms with the exact same test done all being negative. I also have vertigo as well. I'm curious to know if there has been an actual diagnosis for you. There hasn't been for me either. Doctors seem to be clueless in this situation.
hey Rusty I'm similar to you 45 years have regained many funtionw balance is an issue I would love to talk to you 212.722.1598 leave me a message if I'm not there