About a month ago, I was adjusting myself in the bed and did something to my shoulder.

I'm 36, male, 6' 0", 255 lbs. I feel healthy in the muscular/bone sense of things.

How to describe the pain that lingers? It's **sort of** like when you were a kid and threw a baseball too hard, too many times. And then you're left with a really annoying pain in your shoulder for some days.

It's that sort of pain ... deep, inner pain ... but different in that the "pain area" feels like the size of about a walnut. That pain area is thus quite small, but it's "deep" inside the shoulder.

It hurts most in the mornings when I wake, when certain motions are really annoyingly painful. To imagine the movement which causes the most pain at that time, imagine someone "acting like a chicken" and they fold their elbow in and flap. The up motion of that flap is very prohibitively painful in the mornings.

If I had to (poorly) describe the location of my "walnut-sized pain" I would put it at the Tores Minor Tendon [removed]
I appreciate anyone's advice or experience about what the problem might be and anything I can do about it. Thanks!!