Ally, I guess I better clarify that "don't do anything the day of" thing!!! It's just that Rach is so bad off. If she pushes the day of, she may not make it to the appt.! With MG, you can push the day before and it can show up the day after. It's absolutely true that the results are better if you can wear out your muscles. That's one reason I've always wondered why they don't make patients do an post-exercise SFEMG. They do that in some parts of the world, like Sweden.

It's amazing how they change the MG "rules" to fit a situation, in order to make it look like we are malingering! No, the antibody is the Gold Standard; No, it's the SFEMG. You're fine, just go home and laugh. Or sleep more. Or get over some childhood trauma. Or anything else that is unscientific. Like you said, a negative doesn't prove anything - only a positive does (as my MG expert neuro, who is great, says).

Annie