Ok, I talked with the on-call doc. He told me to call the office in the morning and come in to see him.
He said around the 4-6 week point, infections do happen. And he mentioned bone fragments, pus, and some other stuff.
He said he would look at me to rule this out and ease my mind. Or, if needed, antibiotics or a procedure using local anesthetics (god, I hope not) might be in order.