I have done a fair bit of research and I think that RSD is alot more systematic than is thought, I think it is an inflamitory disease process just as is lupus and rhumatoid arthritus, and one of the sympathetic systems functions is imune up and down regulation.. Lupus and RA are both tested (and I presume these are the tests you are waiting for) by looking for antibody levels.. RA is high lupus is higher.. RSD can cause the levels to fluxuate causing false positive results so ask to be retested after 3 weeks.