None of that, it just looks like the floor is tilted forward. It doesn't feel like it though. It's a very odd visual distortion.

I noticed while at the eye doctor when testing different lenses I guess he could recreate the feeling by using incorrect magnification on one eye? Making my brain thing the room is tilted left or right.

Unrelated, anybody ever feel like they lost consciousness for 250ms? Super rare, but I get the feeling that I feel asleep and all my muscles went limp in that moment. It's like when you are falling asleep and you sometimes jerk yourself back awake.