Not sure if this is what he was referring to, but possibly BPPV. http://vestibular.org/understanding-vestibular-disorders/types-vestibular-disorders/benign-par

Not sure if this is what he was referring to, but possibly BPPV. http://vestibular.org/understanding-vestibular-disorders/types-vestibular-disorders/benign-paroxysmal-positional-vertigo http://vestibular.org/understanding-vestibular-disorders/typ... See the section on "Canalith repositioning" here: https://emedicine.medscape.com/article/884261-treatment https://emedicine.medscape.com/article/884261-treatment