My wife has this issue all the time and she says it’s her tell for when she’s dreaming. She often uses it as a que to help her lucid dream
my tell is when i snap the rubber bands i usually wear on my wrists… in dreams, i feel nothing when the band snaps against the skin
i had one recently and i tried to make myself fly after realizing it was lucid, but couldn’t lol… i also thought about jumping off a cliff but my brain still said no that’s still a bad idea… my sub-concious is trained i guess