You have no reason to fear ALS. Nothing that points to it. You have a bunch of unexplained signs and symptoms, that may eventually decide to form into a known disease, or maybevlike me, they never will. The chances are much higher that you have emerging MS, especially with your family history. Whatever you have, you need to shake off the fear, it rips us up and most certainly, starts giving us the symptoms that we fear, I totally believe that. I have thousands of twitches a day, but now only notice them if I think about it. Because the fear has gone, I seldom bother.
I am not sure that my words will help, but I hope they will give you hope that you can shake your ALs fear away. Life is good on the other side.