Couple of other things, Seishin
It took a year and a half to even get an SFEMG because the first test was a repetitive nerve stimulation test
and they called it a SFEMG by accident in my journal.
Also I slept in wool underwear the night before the test (it was September) I woke up at 3 a.m.
Managed to
´enhance´ lots of already existing myasthenic weakness with just heat and lack of rest.
Was difficult getting up the stairs in the hospital, weak legs, weak arms, choking on spit during test, voice changes whilst talking to practitioner that they remarked on, mild ptosis

which is rare for me.
So I was perfectly primed for the test. Nevertheless...
SFEMG of frontalis above the eye
Was still negative