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.
Yes, it just continues to get worse until you do something to make it better. Try putting the top down with one hand on a Mazda Miata when you have a shoulder problem. I did this - once - and almost passed out. It was getting so bad that I had referred pain throbbing in my hand and back, just sitting on the couch in the evening. Good luck with your therapy!