I believe this relates to be increasing activity and the immune system. I have a product here call Pro boost, which I was taking for a while when I felt that my immune system was sluggish. This was after I identified that I have cytomegalovirus active infection. Figured that I could use a immune boosting supplements, and after doing research settled on this product. Was taking it for about a week, and consistently, after I would take it, my twitching would double or triple. The only difference going on In my body, was that I was stimulating immune activity. When you get sick, with the flu or a cold, your immune system kicks into gear, and for whatever reason, this results in increased twitching for most people. So this is probably what is going on. And it absolutely will subside after the infection is gone, and the immune system has calmed back down. It was nice to finally find a definite cause/reaction effect going on with my BFS.