These walls they they are closing in

This is the point in my life
Were I must ask
Ask one question
Just one
It's hard to ask
But I must
I don't know if I can
But here it goes

Am I insane?
Is it possible
Every day the floor disappears
Then reappears at night
Is it that I'm insane
I knew I
Would ask this
But it's come to it
Am I?
"AHHHHH"
I don't understand
Am i