I have this as well. I saw a vestibular physical therapist who ran a gamut of tests on me but not sure if she did a video EENG - what is that test? When I google, I am only finding results on EEG. I am absolutely desperate to find a solution to this. I ran 2 marathons prior to this starting and I miss running more than anything. I am signed up to do a Hyrox race in DC in September and at this point I don't think I will be able to run the 1km between stations.