when i did some research in my early bfs-days i read several times that with als the tongue is fibrillating and not fasciculating, and that the tongue is the only muscle where you can see fibrillation. i also read that most patients do not even feel the tongue movement. i remeber a short video where you could see the whole tongue moving - not like when you stick your tongue out and it quivers a bit, not only one spot or one side of the tongue- the whole tongue was constantly moving like small waves were going through it (difficult to explain).like any other voluntary muscle the tongue can twitch and i know that it is very scary because i experienced the tongue twitch right in the beginning of all this and still do from time to time.i guess you have bfs for over a year now and have been cleared by a neuro? i second FantasticFurball- if you have any doubts go and see a neuro, it will take him 30 sec. to calm your fears!