Hi OneWayTrippe
Welcome to NeuroTalk

.
I have no personal experience of MG so can't say anything helpful about Pyridostigmine/Mestinon. However, I am sure that other members will be able to offer you good ideas.
The Search function (
https://www.neurotalk.org/search.php) could also help. You can use it to find topics here which might help you.
All the best.