Sounds like what I just went through except worse. I had been shooting for about a week and had normal soreness from muscles that weren't used to being used that way and than on Christmas I drew back my brother's old bow and let it down and I felt something in my Shoulder. I kindo of think I might have done it the last time I shot before than but I don't know. Next day I went and shot about 20 shots and my shoulder was barking after about 5 but me being stupid thought "no pain no gain". Just pain was the only reason to describe it. Took some Advil and by the next day fine. Went and shot on Tuesday and boom, it was like a shot going up and down my arm with every draw. Think I took 8 shots or so and shot it down. It freaking burned and it was even hard to sleep. Took 2 weeks off, went and talked to a Doctor and it was tendenities in the rotator cuff in his opinion. By pushing it I actualy ended up messing my left elbow up a bit too because of real bad form. Basically, I now do a major stretching routine before shooting and every night before bed and every morning first thing and it is fine now.

Doc's advice for ME was to build up slow again. I think I started with 10 shots and than 20 two days later and than 30 and I called him and said no pain at that point and he said I could turn it loose and shoot a full scheduale but just to be careful. And to ice down the shoulder like crazy after each shooting session. So far so good. 100 shots yesterday and no pain today (I am Guessing this wouldn't be slow in the Doctors mind but I had to play it by how I felt). If I feel even a twinge now I shut it down, take some antiinflams and ice it down. To be honest I think I could have gone shooting earlier but I think the stretching kind of made the muscles around the shoulder hurt a little which made me back off from my shooting scheduale a little bit.

With my line of work I can't completly shut down an injury which was a whole other problem. The biggest two pains were 1) Kept me from going out hunting the last two weeks of the season (Probably a good thing, my shooting was good but.....) and 2) I have been trying to get out a shoot the new Bowtech's, Mathews and Hoyts and having a bad shoulder slowed me down. Ahh, maybe this week.