When are you fully recovered?

This week has been a test for me in terms of my inner strength and ability to cope. And today I'm knackered... Do I suck it up and go to the theatre with my father in law and daughter or do I listen to my body and sleep.
I can't decide.
It was full on at work, I had to do something that wasn't nice. I had to tell people that might lose their jobs.
I'm so very tired.