That Nagging Pain Between the Shoulder Blades
[These people will complain of a nagging pain between their shoulder blades, usually on just one side of their back but sometimes on both sides. Trigger points in several muscles can cause this type of pain but the pain produced by the rhomboid trigger points tends to persist longer than the others.]
http://www.triggerpointtherapist.com...oulder-blades/


I had it, mine was from poor posture that fatigued the rhomboids.
Posture work, expert chiro, and being aware of any forward shoulder posture has resolved it in my case.
some self helps -
http://neurotalk.psychcentral.com/album.php?albumid=422
our trigger point sticky -
http://neurotalk.psychcentral.com/thread125577.html