Auto Immune Syndromes

I just read that Venus Williams is suffering from a disease called Sjogren's syndrome.  but still won the Dubai tennis tournament.  I looked upSjogren's syndrome on Wikipedia.  It is a difficult disease to diagnose and treat.  It doesn't sound like we know the cause, and there is apparently no cure.  Because one of the symptoms is fatigue, I also looked up Chronic Fatigue Syndrome, and Fibromyalgia which in some ways seems similar.  Apparently all three of these diseases are more prevalent in women, and we don't know the cause or have a cure.   There are some common symptoms among the three syndromes, but there are enough differences to allow them to be classified as separate diseases.  I wonder if there are other syndromes that are also similar.  According to Wikipedia A syndrome:  In medicine and psychology, a less specific definition of syndrome is used, which describes a collection of symptoms and findings without necessarily tying them to a single identifiable pathogenesis.  Is there a common cause for this type of syndrome?  Is it genetic?  Or is it a viral infection?  Or both:  for example a viral infection triggers an immune response which becomes self-destructive due to a genetic mutation?



From searching on the internet, it appears that each of these syndromes have their own support organizations, which consists of other patients sharing with each other.  Each also appears to have fund-raising to help with patients and research.  The research seems to be fragmented, and studying the unique properties and symptoms of each syndrome.  It doesn't appear that there is any organization, including NIH, or the equivalent in other countries, sponsoring research into the possible common cause, treatment or cure of these type of syndromes.  



I wonder if it would make sense to map the DNA of individuals with these various syndromes and see if there are common genetic markers that indicate a possible contributing cause of the syndromes.  If the FDA had continued to allow "23 and me" to collect specimens, maybe it would help. It seems to me that the world really does need an immense database of DNA to be able to identify unique differences that could contribute to causing rare syndromes such as this.