u/BlueberryFormal5069

So I go to a hot yoga class where the flow is the same every time, and I get this weird dizzy feeling/my ears get clogged and my hearing gets muffled temporarily, always at the same point in class (after revolved chair on both sides, then we do a standing slight backbend and that's when I get the feeling). Does anyone know what could be causing this/should I be concerned?