I too have experienced the whole body pain phenomenon!
Unfortunately, pain meds was the treatment. Along with all modalities that gave relief. Ice, heat, massage, water therapy, hot or cold old, topicals, etc.. Whatever gives relief at the time. My inflammatory markers are always all over the board. I have all the symptoms of Srogrens, but test Seronegative. I had JRA as a child, but my RA factor is negative. The consistent positive is HLA-B27. Even with that, my symptoms are consistent with numerous autoimmune diseases. Most recently I had a severe flare that required the ER and more pain medication that I could ever imagine. My neurosurgeon felt something autoimmune was attacking my cord and said I need to find a good neurologist. I have seen several and they are all good but, they can’t figure it out. The other problem is they all know each other and then the new ones will not see me because I have been seen by others in the same system. My PCP will personally call and explain my situation and the neurologist still will not see me.
That really limits my options.