Hey, Gabe. Well, that would really suck. I have not known anyone with MG and Addison's but I'm sure it does happen. I'm just sorry if it's happening to you. Please be careful. Look out for that sudden fatigue (sleepiness or weakness) because that could mean it's getting worse or you could be going into an adrenal crisis (if that's what you have).
I hope your endo is a good one. And nice. As if MG isn't enough for any of us to handle.
Annie