Ever reach into a cabinet and suddenly notice a sharp pain in your shoulder?
Maybe it only hurts when you lift your arm overhead.
Maybe sleeping on that side has started waking you up at night.
Or maybe you've noticed yourself avoiding certain movements because you already know they're going to hurt.
That's often how rotator cuff tendonitis starts talking to you.
One of the biggest problems with rotator cuff tendonitis is that it usually doesn't seem like a big deal at first.