Tired,Read this from the sticky, "BFS in a Nutshell." It is an awesome post. I've read it many times so far.What are the symptoms of BFS? BFS usually starts in the calves of the fingers / hand area, but in reality, it can start anywhere on your body. It usually starts with a little twitch like you normally get on occasion, but this twitch just won't go away. It keeps going, and going, and going. Usually, this will last a few days and the twitch will either stop and move somewhere else, or that twitch might stay and more will pop-up elsewhere. Along with the twitches comes aches, pains, stiffness, tingling, numbness , tremors, visible and non-visible shakes, pins and needles, body jolts, fatigue and an ever changing variety of twitches that go from little tiny one's that you can see but not feel, to great big thumpers that can move a whole limb. Other symptoms can be cramping and pain. BFS with cramping is known as BCFS, aka “Benign Cramp Fasciculation Syndrome", and it is just about as common as regular BFS. Exercise intolerance is another common symptom, where you do a little bit of exercise but afterwards you feel like you just ran the Boston Marathon and the pain can last for several days afterwards. Twitching can increase dramatically after exertion or exercise as well. Fatigue is another very common symptom and can be mistaken for weakness associated with ALS, and most of the time, it IS mistaken for clinical weakness. Fatigue can be felt as a "drained" feeling, lack of energy, weak and/or rubbery legs or arms and so on.