Bummer for you in that the "gold standard" is not an absolute positive or negative either. An EMG is a signpost. A positive points towards ALS. A negative points towards not ALS. But it only points. It doesn't say with absolute certainty one way or the other. Its not as simple as 2 + 2 = 4. Many patients who are dx with ALS have multiple EMGs before they get the "final diagnosis".

Better get use to it because that is how life works. You don't get certainties. You don't get absolute answers. You get problems and how you deal with them is your job. Good thing that you don't have ALS because it looks like to me that you would handle it worse than most who do get it and even the average person usually doesn't handle it well, at least not at first. All you have now is your own fears and its freaking you out, causing you to try to get comfort from people who ARE in really bad shape, at least physically. It would be funny for its absurdity except that ALS just isn't funny. Good luck.