Pascal, very good post and I’ve always thought in a similar way about the whole BFS issue. It also started for me 13 months ago with a very focal deltoid twitch, very strong (I could see my shirt jumping), very fast (1 or 2 twitch per second) and it lasted 24 hours to 36 hours non-stop. Then it stopped and never ever came back in that same location. But when I visited monsieur Google the twitches became widespread in a matter of a few days, but differently (one twitch here and there and not the hotspot I first experienced). I saw a neuro that did a short clinical and said everything ok no EMG needed. A month later my left thigh started twitching like my right deltoids did first. Means a twitch or two per second strong enough to move my jeans, and it lasted 15 hours then stopped and again never came back in that same place. That night I couldn’t sleep because of the fear and I was sure it was ALS, because two different places with such obvious visible strong twitches were too much for me to be just accidental. I Went back to the neuro and he told me: Well ALS is not going to start that way: twitching in the upper right part of the buddy (deltoid) , then twitching in the lower left part (thigh) and then stopping completely with no weakness. A that moment I understood that neuros have a firsthand experience about how ALS starts, and that’s why they seem to be able to dismiss the disease very quickly.Today whenever something new happens (and it does) I remind myself about those two strong hotspots 13 months and 12 months ago which started this entire downward journey into terror. And I remind myself that if my deltoid twitch 13 months ago was due to ALS, well first it wouldn’t have definitely stopped after 24 hours and never came back in more than a year and second I would have witnessed weakness by now. A month ago (at 12 months) I went back to the Neuro for the one year exam. It was my decision not his to do the one year exam because I had some increase in my twitches around that period and because I always wanted to do the one year follow-up. He made the same clinical, tested my strength (arms, fingers, neck, thigh, walking on heels and toes) then took a look at my hands (palms/thenars) and tongue, and finally the reflexes (knees, ankles, elbows, wrist) and said nothing changed in one year, everything is normal.As a conclusion, BFS often starts with some focal twitches but is extremely emphasized by mild OCD and some depression and anxiety.