Thanks so much for your responses. They are very helpful!

I'm trying out a new GP today (who is a DO), so I'm hoping she will be less needle happy/more supportive of an active lifestyle. I had the appointment scheduled anyway to get in with her - might as well see how she does. *crossing fingers* She was recommended to me by my favorite sports med guy and they did work together for a while. Will report back on what she says.

I will definitely not revisit running until the pain is gone. I was just surprised at how bad the pain was that quickly. Nothing during the run, 6 hours later - ouch!