Tyson,
As soon as you are cleared by your surgeon to exercise, seriously take that energy to the pool and start swimming.
If there is one form of exercise that is more MG "friendly" than most, in my opinion, swimming is it!
I do physical therapy in the pool with a physical therapist when my MG allows me.
When I am doing really well, I go swimming 3 times per week in the early morning when I am physically the strongest.

Running, while it may your passion, may not be the best form of exercise for you anymore. Consider all of your options, exercise when MG allows & always put your safety first.

Jenna