I am not diagnosed with MG (though every muscle is weak and i have droopy eyelids, double vision etc.. esp with heat and at the end of the day).. I have a diagnosis of CIDP, though it is atypical.. I have twitched for 4 years, never thought twice about it until i got weak all over, then i was officially freaked out! every single muscle in my body twitches, though the IVIG helps tremendously with that . good luck!