Falling into the bed feet 1st?

Never had that but it sounds like fun. I would go with it and see where it leads.

I experienced something quite similar 2 or 3 time, but it was more like melting onto the bed, feeling energy in my limb but having them melted onto the bed, unable to move anything. Feeling like the heat from my abdomen is slowly grinding at my whole body.

I have that feeling during almost every session. For me its not so much falling, but my body sort of swinging back and forth. I haven't had it since I was a kid, but it seems like the same sensations I had at the dentist with laughing gas. Maybe somewhat of a dizzy feeling. But that's what then leads to me having some really strong pelvic region sensations and full body tingling. My heart rate increases and it feels like something big is coming. I search for that "falling" feeling. I still feel somewhat "dizzy" like for a while after stopping.

I feel like I'm moving up and down, like my entire frame's vibrating and I'm humping something without moving