I have had this pain only on my left scapula for about 4 years, and I have never fallen, etc. It has constantly been misdiagnosed and now it's getting to the point where I can't even lift my arm for more than 1 second to put my hair up. There is incessant grinding, which sometimes worsens to complete frozen shoulder. I can't move my left shoulder as far back as my right one. Burning pain can be felt from my scapula down through my arm and when I type/write for long periods of time, my left hand gets tanner than my right hand and the veins pop out. The muscle ache is most severe on the inside edge of the left scapular and the upper, inside corner (close to the clavicle). It has been diagnosed as bursitis, levetor scapulae pain, muscle knots, and stenosis (all misdiagnosed from different doctors, aside from the bursitis). Any advice, suggestions??????
Of course, without an examination, it is not possible to tell what is exactly going on in your case.
With the difference in color of the hands, you can have thoracic outlet syndrome.
With the popping, grinding under/around the scapula, you could have snapping scapula syndrome.
Or, you might have neither of these and have something totally different.
You do not say what type of physicians you have seen, but you may want to see an orthopedic shoulder surgeon, for a complete examination of your spine and upper extremities. If you have already seen a shoulder surgeon, and you are still having problems, either see someone else or return and say that what ever you tried in the past is not working.
If you do not return to say that you still have the problem, the physicians will assume that you are doing okay. You have to be proactive.