Re: ANA and ds-DNA were negative 6 months ago, but could they be positive now?
Innocence, I'm merely a patient. That said, I *think* results for MOST, if not all, of the blood tests can fluctuate as the disease flares/recedes. FYI, in his U.S. lupus hardcover, Dr. Daniel Wallace lists MANY autoantibodies seen in lupus, in addition to anti-ds-DNA & the threshhold ANA test. e.g., antihistone, anti-Sm, anti-RNP, anti-Ro, anti-La, antiphospholipid, etc.
In the UK, I think Dr. Graham Hughes is the best-known rheumie/author. He did breakthrough work on antiphospholipid syndrome, aka Hughes' syndrome, aka "sticky blood" syndrome. FYI, there are sticky posts at the top of the thread list on APS, on lupus diagnostic criteria, and on lupus test results.
I was Dx'ed with fibromyalgia, too. And Lyme. Awful thing was that I slouched around for 8+ years with a rash I later learned was 100% diagnostic of a subset called subacute cutaneous lupus erythematosus (SCLE). I hope you see a rheumie, one very sharp about lupus in all its guises, subsets, clinical symptoms, blood tests, etc. Best wishes to you, from Vee