As most of us that have been on this site for a while know, BFS is kind of a catch-all diagnosis. We all have the baseline of twitching, but after that there are any number of "extra" symptoms that plague us just as much as the twitching does. And even in the twitching, there is a large degree of severity. Some of us, like me, twitch thousands (tens of thousands) of times a day in tens of different ways (trembling, rumbling, jerking, small twitches, large twitches, twitches that last for several seconds, twitches that are one and done, hot spots, etc, etc) while others have only a handful a day. All fall under the BFS umbrella.Then, depending on the underlying framework behind your BFS, there are a bunch of other extras that we have to deal with. With me, I believe that this this is an autoimmune issue caused by an immune system that didn't shut off after a bout with a flu bug. That was almost three years ago and I have had issues with canker sores, peculiar skin rashes and occular migraines - all of which can be related to some immune system issue. Each of those come in phases. I got canker sores off an on for about 4 months and have had maybe one or two since. The skin rashes came and went over several months and I still get them every now and then but not very often. The migraine outbreaks are similar. But I don't get the nerve pain that others have gotten nor toothaches or stomach cramps. In fact, other than the BFS (bad enough!) I haven't been sick since this all started (knock on wood). So yes I agree that if it is autoimmue related, then you can get the BFS plus a whole lot of other stuff. Of course a lot of this may be exacerbated by the stress and anxiety that BFS brings, but I really don't think that any of it is caused by stress and anxiety. My neurologist and I have had this discussion several times and he doesn't discount the theory but there is, like most autoimmune issues, no test for it and also no cure. It is a syndrome that is diagnosed by ruling out everything else that it might be. No fun by any means and certainly the relentlessness of it can be draining, but it is benign.