When I wake in the morning, I always have to stretch my arms and legs before standing. I don't know if it's MG or my age, but I got over standing and falling straight down once I stood. I can't know for sure why the stretching helps, but in my case, it helps tremendously. I hope it can work for you as well.

It can be. If your feeling weak in the morning ask your Dr about time release mestinon. That might help u.