I kinda get what you mean. Sometimes when I am just asleep and I wake up and really cant work out if I am asleep or if I was asleep.

Whenever I was ill whe I was younger my mum would wake me up to give me medicine and in the morning I couldnt remember it.

I also have extremely weird recurring dreams that scare the shit out of me.

I think I am slightly deranged because when I get extremely stoned I think about stuff like me and a few mates doing a dance routine on tv to a wrestling theme song.