With BFS, can you have flare-ups where your symptoms are really bad followed by periods where you feel quite good?A couple of times now, I've had a period of two or three weeks where I feel pretty good. I still have a few twitches and some minor cramping at night. However, I almost feel like my normal self again. Then all of a sudden, my symptoms return in full force. I have major twitching and cramping, my ears are ringing and I just don't feel great. Is how BFS works? Is it like that for everyone else or is more of a constant thing?