['I once woke up from sleeping to feel paralyzed,  like someone was standing on my chest.', 'oh ive heard of that before.. scary stuff', 'I started to see dark figuers and people fly toward me,  I tried to yell.  then I just blinked and everything was normal and I was awake.']
has it happened more than once?
I once awoke not able to move or speak.  I was scared to death.