Bouncing vision

I’m so curious… I recently had a phenomena that Used to happen to me often (2-3x/month as a teenager) and just happened this week for the first time in a long time.

Has anyone experienced this:

When laying down I feel oncoming dizziness (usually I am asleep and wake up from it) and when I open my eyes objects in the room bounce back and forth horizontally… I’ll blink and the bouncing distance back and forth starts large and gets smaller till it’s vibrating until I blink and it starts all over again.

So weird and I’ve never met anyone else who has experienced this.