Is This A Common Experience?

[sgn]

I've been practicing recognizing awareness. This that I am. The only thing that has been constant and is the witness of everything else that changes etc etc.
When "I" "do" this it's like everything is moving. I can stand up and have a feeling like I'm surfing on the ground. lol. Pretty fun. Don't fear it anymore. Feels pleasant.
Really feels like the ground is moving and not just looks like it. I have experienced it before, but now it getting pretty crazy.
Is this common?