Thanks, Al. It's like that for me: I have steady mild weakness all day, but I get spells of more severe weakness, like you say, out of the blue. They come on suddenly. I go limp, and if I'm not paying attention I end up on the floor (or at least in a squatting position). My neurologists say that to get sudden spells like this is "not typical" of MG. During these spells I find it hard to even sit in a straight-back chair. I have an Adirondack chair that I use for the dinner table if I have an episode while we're eating (because I tend to get these spells around dinner time--and as far as I can figure, blood sugar has nothing to do with it. I get the spells at 5:00 whether dinner is at 4:30 or 5:30, whether I've been fasting or snacking all day. And I never feel light-headed or dizzy--just limp).

Abby