Annmarie , When I am in crisis & I can't breath, I am totally limp & am not stong enough to pull air in period. Through out the day, doing my daily stuff, when I weaken, I get the out of breath, gasping , you mentioned, I don't believe with MG we are able to breath deep enough with our weakened lung muscles, so we tend to shallow breath to get the air we need, when we do things.
Mary