Hi Laura - - welcome.

I agree with Abby and Annie....but would also strongly urge you to thank your PCP, get your test results, and find another doc for this. This is over your PCP's level of expertise.

I love my PCP and still use him...but he bombed on my MG dx. Went through many specialty docs (rheumy, oncologist, 1 neuros), before I found my current and 'forever' neuro!!

Also know that I am sero neg, passed every test they gave me except had a 'borderline SFEMG. But I thrive on Mestinon...at doses that my neuro has says no one without MG could tolerate!

Hang in there -- keep looking for the right doc for you.