Speaking of recognizing your digits…..
Years ago I woke up in the middle of the night and saw an arm sticking out from under my pillow. Somehow - in my sleepy stupor - the following things happened.
I knew that it wasn't mine (I knew this because I wiggled my fingers and the fingers of that hand didn't move).
I managed to suppress panic just long enough to wonder how there could be an arm belonging to someone else where it shouldn't be... (remember sleepy stupor... not SURE this wasn't a weird dream)
Then I decided to reach over and touch it. It was cold (and the fact that I didn't feel the touch confirmed that it was NOT mine)!
With a shriek I leapt up and realized that my entire right arm was soundly asleep, dangling useless and numb at my side....
I bet that happens to everyone though, right? Nothing weird about it at all.