I hope that the PT you’re having does help with your vertigo; I’ve seen it work quite well on TV, but don’t know of anyone who’s had it done…
Have you had a CT to check that the styloids haven’t grown back, or are the doctors sure it’s crystals?
It’s quite common to have dizziness with vascular ES, or if the styloids compress certain nerves . If you’re interested here’s a link to a discussion about Vestibular Rehab some members have tried: