My right index finger has been recently doing exactly the same as others have described in this thread. Because I have had BFS for so long now, and because this finger has done this weird moving-by-itself thing on and off for so long, it does not trouble me in the least and doesn't make me feel even slightly anxious. Nor should anyone else with this kind of symptom feel worried - a twitch that is strong enough to move a digit is not occurring in a diseased/ dying muscle. I do understand how new symptoms like this trigger anxiety - I have started getting a lot more mouth/ lower lip twitching recently which is a new symptom for me and, because I was not familiar with this new symptom, I did experience a mild recurrence of worry and unhelpful thinking, along with the habit of gazing at my mouth in the mirror as well as whistling periodically to make sure I still could! I did choose happy tunes to whistle though so that was at least a little therapeutic... Python's "Always Look on the Bright Side of Life" is a good option!CheersSimon