In the report, it is mentioned that you had exactly one fasciculation in the second muscle that has you so worried. But here's the important part: even if you had a boatload, it wouldn't matter. Nor does the polyphasia mentioned. The abnormalities that are seen in ALS aren't there. And no, given the issues you feel, they're not going to show up later -- the fascics are not some kind of prodromal stage. While I realize the urge to Google is strong, so is the urge to eat dessert instead of dinner. I imagine you can resist that urge most of the time.
I can only assure you, as can your dad, as did this neuro, that there's nothing in your history or tests that suggests ALS. If he is in the field, he has seen health anxiety before and can refer you to someone who can help.
As for the twitches, many people find that tweaks in their diet, hydration, workouts, stretching, stress, and sleep can help. I'll bet you can, too.