I agree w/Miriam as i’ve only had Vertigo once in my life & it lasted for 2/weeks - if u google it u’ll discover it is caused by some calcium crystals that get loose from where they’re supposed to be & once this happens u get vertigo which is the weirdest feeling in the world for those that have never experienced it - it feels like u’ve just became instantly drunk from having drank too much alcohol - the only thing that made my episode go away was the Eply maneuver done by my PT therapist or maybe a chiropractor could do it too, however, my PT therapist walked me thru the exact steps on how to do Eply and i was able to do it myself during the 2-weeks i had it and just an fyi ur skipping a step of the Eply maneuver bc there is a step of u having to do something else w/ur head more than what u said u’ve already tried - once ur calcium crystals have been put back in place where they belong then ur Vertigo will stop unless they come loose again in the future - my vertigo i experienced 3-yrs ago has never come back thank goodness - so best of luck to u.