I'm not sure what you mean by this but, every now and again I get these "rushes" triggered by sight, smell, or touch in my head. It feels like I'm trying to remember something urgent about what the sense is from, but have no memory of what it is.
It feels like you begin to leave your body for a second rushing back in, like when you feel like your falling as you barely fall asleep jolting you back awake..
Does anyone else have that sensation?