looking for answers?

My mother is 39 and was diagnosed with Sjogren's and is now being tested every 6 months for Lupus...her counts arent high enough to diagnose her at this time but they keep going up, so she'll be tested every 6 months til they can. I just want to know if they come back with a positive lupus what is it she has to look forward to. She's already has the rash at times and she has fibromyalgia and rheumatoid arthritis. and has had already had a full hip replacement. I know the physical issues will keep getting worse but i would like to know how much worse and if there's any physiological that goes with it...such as personality change. any information will be helpful.