Hello -
You can write off the gallbladder problem (at least as a cause of the
pain you've written about here). This is too high up, and were it gallbladder-related, would not cause tenderness on pressure.
This sounds very much like a musculoskeletal problem. It could be an inflamed pectoral muscle, or possibly a tendon/ligament attached to the pec. The fact that pressure upon the muscle above your shoulder blade on the same side also suggests that either you are chronically doing something to irritate both areas (which do work in concert), or, as a remote possibility, this may be caused by a condition known as thoracic outlet syndrome (TOS), although this would normally cause
pain, tingling and even puffiness in the hand on that side. More likely it is a repetitive motion injury or infflammation due to an overuse or strain of the right shoulder girdle at some time in the past.
This should respond to non-steroidal
anti-inflammatory medications, over-the-counter types, such as ibuprofin or naproxyn, taken according to directions on the package. If not, then you might need to see a doctor who can evaluate this for physical therapy or even possibly an intramuscular steroid injection to relieve the inflammation.
I hope this helps. Best of luck to you.
