I had that all the time when I was working full-time, so I can definitely empathize. I lived for Saturdays, but the anxiety ruined Sundays for me, because I knew it was almost time for another week's slow suffering at work. A little over a year ago, I went out on medical leave for three weeks in lieu of hospitalization for a bad meltdown at work, and within two hours of walking back in the door I was destroyed all over again when faced with the work that hadn't been done in all the time I'd been gone.

I wish I had some words of advice for you, but all I can offer you is my sympathies. Wishing you peace and healing energies.