Now that things are cooling off, I had thought about trying to do a little bit of walking. I don't mean a marathon race; just a little bit of walking with my dog and my husband. I am not sure what to do. When I am on my feet too long, my voice goes out. When I talk to long, my voice and my ears and my eyes go all wonky. Is walking going to make me unable to lecture (which I have to do for a living) or is it just going to fatigue my legs? I have already started sitting on a stool for most of my lectures and the students respond to it ok.

Does exercising legs cause fatigue of other body parts? If so, why? I understand a lot about the physiology of MG, but I am still confused as to whether since it is systemic, will fatiguing one muscle group hurt another one. Any ideas?