Thank you all for the comments above. It was a busy two days, two church services on Sunday, where I directed , then yesterday, four hours' driving to fetch offspring home and then back. I expected to be sore today, and I am but was made worse at PT. Not news, is it? I banged the knee on a pointy bracket behind a church pew and felt shooting pain up and down the leg. It died down, but at PT I learned that I've still got a sore spot through which it's difficult to bend or extend due to pain on the outside of the kneecap. Now it's roaring and I'm counting the little tiny pills left in the bottle. I'm icing and using Tylenol. I'll manage but it sure seems unreasonable.