the tape of the show in my head

does anyone else have this?
i have in my head
a kind of tape of the last show i did
if i run through the show in my head i can kinda
hear how the last show sounded
can remember all the new things i did with voice and face and body
all the mistakes i made
and all the laughs
...
this is very handy
its only there for the first mental runthrough i do
so i have to be careful to do that first runthrough with no distractions
so i can play proper attention as i think it through
but it is there
which, like i say
is v handy
...
its like a computer facility
does anyone else have this?
...