From what I'm reading on this forum and other literature regarding lupus, it seems that it is predominantly followed, or accompanied by other autoimmune diseases.
Given the difficulty in diagnosis that many of us experienced and still experience, I wonder why the medical profession doesn't categorise all connective tissue/autoimmune diseases as one all encompassing disease that expresses itself in each individual through different symptoms, particularly where the basic treatment seems to be the same. That way everyone can be diagnosed quicker, the sufferer can absorb the news about the illness better (I would rather have one illness with multiple symptoms, rather than many illnesses with overlapping symptoms) and treatment can be started earlier.
But I'm not a doctor, so I am probably looking at all this too simplistically. Still, I dread the time when a new lupus related illness will come up, I'm sure I will feel like I'm falling to pieces.