What's Up With Marcus

Marcus was in Cardinal Glennon Children's Hospital in St. Louis for a few days for pain control and further testing.
His lower back, both hips and the back of his knees starting hurting him terribly. We seen his pediatrician who done some more blood work on Thursday but when the pain would not let up despite major pain meds I along with his doctor and a rheumatologist at CG decided he needed to be seen in their ER.
He was admitted during the visit and we stayed there Saturday morning till Tuesday evening. During that time he received a Morphine IV for the pain and had a lot of blood work done.
Here is what we know......
It looks like he may have Lupus.
His ANA test has came back positive three times now. On Thursday the titers tested 1:300 (something). By Saturday it had quadrupled to 1:1200. Even though all other antibody tests have come back negative the doctors say this is a direct indication of Lupus given his symptoms and the family history of it on Joey's side.
Nothing is positive at this point though and all we can do is treat his pain and keep retesting him till something else shows up. As for now he is on pain and arthritis medicine.