I was working out today and I started to feel my upper back, more towards the center of the upper back, just inside my upper right shoulder blade get tight. Now it's very tight. I didn't hear a pop or felt a pop. So it isn't a tendon, ligament or muscle tear. I wasn't doing any heavy lifting. I think its more of a pinched nerve.
The pain is more associated with the movement of my head. If I turn to the left I get no pain. I have limited movement and some pain (level 4-5) turning my head to the right. I have the same pain when bending my head forward or tilting it backwards. There very little pain when I move my shoulders or retract my shoulder blades.
I am going to RICE it up a bit. Get the ice and heat going, pop some Alieve and see if this goes away quickly. Luckily it doesn't hurt when making a backswing :).
This probably has to do with my poor posture habits.