Wow, that is amazing! I almost didn't post this, thinking it's too OT. But as I explained above, arm signals are painful while on the bike, so it's related enough.

UPDATE:
I saw the ortho doc on Tuesday. There is no improvement -- in fact, the pain seems to have migrated further up and around the arm. Some movements are much more painful, including driving (I drive a stick shift). He gave me an order to start PT 3x/week for 4 weeks, and I already have an appt. on Monday morning at a place that treats a lot of sports injury.