What is ALS weakness? My rt arm feels heavy but I'm not sure if it's in my mind because I'm worried. Getting muscle twitches that jump around random

What is ALS weakness. That is a very good question. It sounds like your symptoms are muscle twitching. You have this in both arms and legs, and in your body? Your right arm feels heavy, but it is actually weak? Other important questions are if you have lost weight, and whether you have trouble swallowing? There are many possible causes. Dedicated testing is needed to make a diagnosis. Feel free to chat if nec.