I can indentify with you taking a leave. I really wanted to retire before this school year, but I keep pushing myself. My feet hurt so bad when I get home of the afternoon that I have to put them up for a little while. I'm also so exhausted that I usually fall asleep as soon as I sit down and get quiet.
I wish I could get up the nerve to quit my job, but I'm so afraid of the future and what it may bring. That's why I keep pushing myself.
While your on leave, take it easy and rest up. Maybe you will get to feeing better. I hope so.
Of all the things that I have lost, I miss my mind the most!!!!