Hi Rocky. I’m sorry to hear about your wife’s serious health challenges. As someone else posted, it’s very common for other forms of MG to convert into gMG over time. I asked your question to Grok and it says that some chemo drugs can worsen MG symptoms, even to the point of causing a myasthenic crisis.

I would assume that the fatigue she’s experiencing could come from gMG or from the chemo, but the issues with her breathing sure sound like gMG. Hopefully your wife’s neurologist and oncologist can get together and come up with a game plan that can attack both issues, but in a way that doesn’t interfere with the other’s medication.

Your wife and you will be in my prayers.