Hi GTO,
Yes my sister and I both have been diagnosed with familial MG. I also have diabetes. My mother had MG and two of her sisters. Also looking at photos of my grandfather he had a droopy eye and also diabetes, so I'm pretty sure he may have had it and it was passed down through his line. So far I have not responded very well to treatment. My sister is scheduled to go to Duke University in June for an a evaluation. As for treatment for familial I believe it's the same for generalized.
Mike