Myasthenia Gravis Support Group
Myasthenia gravis (MG) is a neuromuscular disease leading to fluctuating muscle weakness and fatiguability. The hallmark of myasthenia gravis is muscle weakness that increases during periods of activity and improves after periods of rest. Although myasthenia gravis may affect any voluntary muscle, muscles that control eye and eyelid movement, facial expression, and...
I do think there is some genetic component to auto-immune diseases. Many folks (like me) have more than one. I have two additional auto-immune problems along with MG (although the MG is currently in remission).
My mother had an immune system problem that lasted from her 60s until death at 91 and had to take prednisone all of those years (polymyalgia rheumatica). Research on MG shows something like 5% have a close relative with MG, which is not very high, but higher than chance.
Hope you get things figured out. Having no diagnosis or a wrong one are both very difficult to deal with, harder than knowing exactly what is wrong. Sometimes I think those of us who get a quick MG diagnosis with the blood test are the "lucky" ones, as we begin treatment quickly and mostly the standard treatments work for us. The problem seems to be that there are some MG antibodies that are still not part of the testing available -- every few years a new test comes out that shows that. And of course there are other conditions that have symptoms that are similar to MG, but even rarer and harder to diagnose. And sometimes doctors seem to give up on folks who are hard to diagnose.
Sorry for your difficulties, and hope you find relief.
Good Luck
Russ