If they say no to a leave then, maybe consider going on demand. You could work when you want to and only have to work once every 6 weeks. Later after the holidays you could switch back to part time.I just came back from having surgery to remove lung cancer. Its gone and I need no treatment, but I am still having discomfort and dont have near the strenght I once had. I could retire as I am of age but like being able to work part time, I just cant handle the Q4 madness anymore, I will have a conversation and see what they can do to help me.
Thanks everyone