Yeah, it’s happened to me. It kinda felt like I was a soul inside a shell of a body instead of a whole person. Being John Malkovich-esque. It only lasted for a second.
I'ev had this more than once but the worst was after a game of Lasertag at Dreamworld. I couldn’t tell if I was dreaming and I almost broke down because I wasn’t waking up and I didn’t know why.