I think I've torn my rotator cuff. I was curling dumbbells, going for max reps and when I finished my set and put the weights down I felt a little pinch in my shoulder – not pain so much as a rough spot that I could feel at certain points as my shoulder traveled through different movements. For example, when I bring my elbow behind my shoulder in an imitation of bench press, at the far range of motion, my shoulder seems to slip a little and the pivoting of the joint is no longer smooth. At the low end of military presses I have the same sensation.

Despite the injury, I have almost no pain in the joint, just an occasional mild discomfort.

Has anybody ever had this injury before? Does anybody have any advice?

Benchpressing without a warming up gave me a very similar pain in my shoulder once. I couldn't bench after that for about three weeks, then everything was back to normal.