I'm a 2+ year member of the distinguished and exclusive group of MG folks. I've never read or gotten any info. from my Dr. about theories on the causes of MG. My MG started suddenly within a week of the first flu shot of my life (age 54). Mr Dr. discounts this idea - but no one has ever offered any better theory. I assume most of my fellow MG-ist must have entertained theories themselves - any thoughts?