I had been at a job for almost four years.
I had a pinched nerve in my neck that was getting worse and worse and making my arm not work correctly.
It was really bad one day so I called in to take a vacation day. The next day was still bad but I decided I would try to work and if I couldn't I would go to the hospital.
Walked in and my boss was waiting for me at my toolbox. I was thinking "Great, I can tell him my plan."
He fired me for "poor performance" before I could even say anything.
Now I am at a much better job, closer to home, making lots more money.
I had the same nerve issue come up a few years ago.
Boss told me take time off, see a doc, and get fixed and healed up.
2 months of no work, MRIs, nerve meds, and therapy.
Went back to work and got a raise "for busting my ass to get back to work".
Old job does work for me now and I've poached some of their best.
F 'em!