This is what psychologists term 'availability bias'. Vast numbers of people have symptoms that appear to be very similar to yours, only the very rare cases when they develop into something nasty become 'available' i.e. this poor guy writes about them in The Daily Mail. But they aren't going to publish a series of articles about me, or thousands of people like me, because I'd have trouble stretching out "Yep, I twitch, sometimes quite a lot" to 500 words even once.That is what is so great about this board, it goes some way to balance that availability bias as the uninteresting, boring twitchers also get a place to say "I twitch but I'm fine" (and personally I wouldn't want to write for The Daily Hate Mail for any reason!!). ALS is very, very rare and your GP is not even concerned enough to send you to a neurologist. Based on those FACTS then chances of you having it are ridiculously small. The chances of you having severe anxiety about your health (with the associated self-testing, trawling of media to 'confirm' what you fear etc.) are, in my non-expert opinion, close to 100%.GlowGreen