My mother has it, she goes to a specialist that resets her crystals in her brain
She lays on the table with her head hanging over the edge and he moves her head in a few different directions and she is fine immediately after
I have to help her walk into the Drs office and she walks out just fine on her own

I had that procedure done this past fall and worked super. Doing the Epley Maneuver at home didn’t work, maybe made it worse, so the Dr did the procedure you described and it was an immediate cure. Got all the crystals back where they belonged.