I also have Lupus, RA and Sjogrens.
The only thing that has helped me, for all three of those ugly diseases, is MTX. Actually MTX, Mobic, Flexeril and Medrol.
It helped with the joint pain, the muscle pain, the dry mouth and eyes and the tendon pain.
I am like you, my hands and fingers are the worsed, followed by the hips, knies, elbows, neck and shoulders.
My right side of the body is worse than the left, my fingers are always swollen.
I may have been dealt a bad hand, but at least I'm still playing with a full deck. ( most of the time anyway).