Have the same issue and diagnosis (BPPV). 2 yrs ago, I visited my dentist - a marathon 2 hr appointment with my head tilted back - ever since that appointment I

Have the same issue and diagnosis (BPPV). 2 yrs ago, I visited my dentist - a marathon 2 hr appointment with my head tilted back - ever since that appointment I've had occasional vertigo. Not sure if it was related - but I'd never had symptoms prior. Head tilting back (while shaving , or roller-coasters or a dental chair), or working near a window/edge thats on the third or fourth floor, can bring it back.