Joint pain pain and back pain are not two foreign areas of study. By definition a joint is "the point of contact between elements of an animal skeleton with the parts that surround and support" (Merriam Webster). In fact, the spine itself is made up of several joints.
Your pain itself is very real. It manifests as a shoulder ache, neck ache, headache, etc. Therefore; we must treat those physical symptoms, but not without recognizing that the pain is the product of a hypersensitivity to something else in your life.