This topic gets me thinking about the autoimmune/viral possibilities of BFS. I have had Crohn's Disease/Ulcerative Colitis for about 10 years. Crohn's/Colitis is an autoimmune disorder. And I remember my gastro telling me that many people experience flare-ups during cold fronts, changes in the weather etc. I remember it happening to me also.
Maybe I'm reaching here, but I'll be darned if my Crohn's didn't flare up during weather changes. I haven't really thougth about the twitches behaving that way.
Johnny