I work fulltime in a doctor's office and yes, I too must work, I am my support. My worst day is Thursday, we are there from 9-8 and I work the entire time frame and Friday's, I am putty. Friday has been deemed my day of rest.
Aussie, I never heard it said this way: "bodywide PN"! That's me too, now I have a name for it.

My worst problem is the headaches I get from the PN in my neck and shoulders, except for the days when it feels like there is a pinched nerve in my shoulder and my arm and hand ache terribly.
We each do what we have to do and go from there. There will be a day and I'm thinking it won't be too far into the future, when I will have to request fewer hours on Thursday. The other 8 hour days are doable, but that 11 hour day does me in. It's a busy office and my multi-tasking is slowing down.

I just keep saying, "YOU CAN DO IT!!!!"