Текст песни time to process (the shower) - handkerchief code

A nurse came in and told me to take a shower
It was 8 p.m
And it had been
A long fucking day
I'd take it glady
A nurse came in to check on me
While I was changing
She got an eyeful
That's for sure
The bathroom door was more like a window
You couldn't hide anything you were doing
The water started running
It felt good
I thought about what my family was doing
And all the mistakes I've ever made
What was the trigger for all of this?
I don't even know