On Saturday, I overused my left arm doing some work on Santa's Chair. I knew it was going to be sore the next day. What I didn't realize was HOW sore.
Sunday, I slapped a brace on my wrist to remind me not to use the arm for heavy lifting or anything.
Today, as the only peon in the office, I left the brace at home. Which is fine, cause it wouldn't do me any good anyway, as the entire arm from wrist to elbow is swollen. Badly. Still have feeling, not cold or pale, no blotches or anything like that (more than normal, anyway).
So. No using my left (dominant!) arm for a few days. I'm going to get a sling for work so I will remember not to be dumb and do anything like lift boxes.