Welcome to the board!!! This is a great place with lots of advice. You may know that negative test results doesn't mean a whole lot as far as MG goes. We have several people here that have tested negative several times. Matter of fact my first tests came back negative but my Neuro said he didn't care because eventually the tests would return positive and sure enough within 3 months my blood work from Mayo came back positive.

As Suev said everyone with this disease is different and the treatments are varied person to person. What works for one person doesn't work for another. I am now on my 3rd round of IVIG treatments with no results. None of the meds are helping just holding my current state and hopefully keeping me from getting worse.

Again welcome and don't be afraid to ask questions.
Mike