Hey Kathi-
Off Topic here, but where along the blue ridge are you? My wonderful BF is from up that way and we might be venturing up that way at some point to visit(he is from the northern neck area). I have no idea if that is anywhere near you and IfJane, but I know he always talks about how he used to ride the Blue Ridge Parkway....

On the knee pain, a little tiny adjustment can create a huge amount of pain. I would have it checked out. Also remember that everyone's insides are different, so what might not cause pain for one person could cause pain for you. You might want to have them move the seat back to where it was, but tilt it up.