A BiPap is a machine that helps patients breathe. You wear a mask in your sleep, or while awake, and the BiPap pushes air in and out of your lungs, thus resting the diaphragm and other muscles that normally "work" the lungs. It is these muscles that give out in
ALS ... the lungs themselves, being organs not muscles, remain fine.
Generally it is advised to start BiPap use as early as possible to extend the functionality of the lung muscles as long as possible. Some people resist BiPap at first, but we all come to accept it eventually. It is very beneficial.
You're not moving too fast! It's best to be prepared for what's coming, and there's a lot to learn about the gizmos that extend
ALS patients lives. It's new to all of us at first.