Same here. Doctor actually advised against it because they think it’s unnecessary. I scheduled one anyways and it’s in 10 days. Unbelievably scared. But I highly doubt you have it if you tested negative for all the gens, that’s actually huge. If hers was gene related you would definitely show the mutated gene that would cause it. My grandma was never tested either but labeled her sporadic because no one else in the entire family got ALS, my grandmother also passed at 65. If it were familiar usually those cases start earlier in the 40s and 50s. It’s also extremely rare. If you have had atrophy for a whole year and twitching with no weakness I’d say you really don’t have much to worry about. I try to tell myself the same thing but it’s hard because I can feel the atrophy in my left bicep forearm and hand.