I'm very new to MG only being diagnosed rather skeptically about 4 weeks ago. Mestinon is hugely effective but I can't take much before I get cramps and itchy.

My question is how much variability is "normal?" The double vision is fairly consistent but other muscles seem to vary greatly from day to day. Some days it's my legs, others it's my voice and swallowing, and recently breathing which eventually passed. I understand it can vary, but I guess I expected that at least which muscles would be affected would be somewhat consistent.