Much of what you read on the web from ALS people describing their first symptoms is ridiculous. Seems everyone goes back about 3 years before other symptoms started and says something like, "I noticed a little pain in the joint of my index finger," or "I had a hard time not yawning during meetings," or something else equally ridiculous. Looking back, so many misconstrue some early ache or pain or natural reaction as the first sign. Many more people have arthritis, for instance, than ALS, so you would assume that many people diagnosed with ALS also have arthritis. But for them, this arthritis was their "first sign" of something insidious.
Bottom line, don't read ALS sites.