right lower chest wall pain
I was diagnosed with fibromyalgia in my late 20s, and am now in my late 50s. I have recovered (in the last 18 months or so) from a right frozen shoulder and am currently in the unfreezing stage of a frozen left shoulder. I also experienced transient symptoms (about 6 months) of a 'frozen right hip' (unable to fully abduct and pain) which recovered naturally.
About 6-8 months ago I began experiencing pain in my right lower chest wall - the pain is difficult to localise but appears to be more posterior, is constant and not associated with respiration or coughing etc. Sometimes it also feels like s stitch in my upper abdomen, up under my ribs. It manifests predominantly at night when I lie on that side, (never a night when it doesn't occur) takes some hours to dissipate after rising and is generally absent during the day but can reoccur, for eg after a big meal. I have had a chest xray, thoracic spine and right rib xrays and abdominal ultrasound - all are normal.
My initial thoughts on reading your history was that this could be a gall bladder or liver condition, but the ultrasound would probably have picked it up. When your doctor presses up under the ribs in the right upper quadrant, is it tender?
Do you have any mid back pain? A fixated rib would radiate to that area, and sometimes on to the sternum. It doesn't sound like fibromyalgia.
Frankly I'm unsure. I presume your medical doctors are scratching their heads. Perhaps it's time for a chiropractic examination of the thoracic spine, and the costo-transverse joint.