I walked into a classroom yesterday for the first time since last June. I felt awful that I had to get back to the work that brings in the tuition dollars. (In my field, tuition dollars usually outpace indirect costs by several orders of magnitude.)
After a break, the return to teaching is excruciating. In the days leading up to the first class of the quarter, I imagine other jobs for which I might be better suited (barrista? paint mixer at Home Depot?) and entertain crazy schemes by which I might reduce my teaching load to zero. I put off my course prep until the last minute. I'm late to that first class, having dragged my feet all the way down the hallway -- dead professor walking! Sometimes I imagine that my pain is so unbearable that taking the break from teaching was not worth the agony of returning to the classroom and I swear I will never not teach again.
So I gave my first lecture. It was fine; the agony is over. They seem like a good class, so far.