I had a physical the other day, and it included a tetanus shot. Ow. I can’t lift my arm above shoulder height, my neck is getting stiff, and I seem to have odd numbness down my arm.
It’s now on my usual 3-day rule: if it still bothers me, or is worse after three days, I’ll see a doctor. Most things go away before then, or are serious, so its a good rule for me.
(Oh, and I seem to be in pretty good shape. We’ll see what turns up in the labwork.)