Flip of the brain switch

Driving home from getting our hair done yesterday.
mother and i were rocking to an alternative rock station on the radio.
she was clapping her hands and saying 'goodie' when the song came to
an end.
i just kept seat dancing to the next song, but my mother suddenly
came back from being completely involved in the previous song...
only she came "back" completely lost.
She had No idea where she was or Anything !
I tried to bring back the "happy" but the moment had disappeared with
the song. Instead I was brought back to the land of the lost and barraged
with questions and her groping around for non existent purse , is this your hat,
where do i live, etc.....
Can you imagine suffering from sudden amnesia and the person
whom you sort of recognize just responds with aggravation at your
fear ?
It is So difficult.......