Hello Seamusmac,
Welcome to NeuroTalk!
How frightening for you going all that time undiagnosed. I'm very happy to hear you found a doctor who finally diagnosed you correctly.
Check out the
Myasthenia Gravis Forum
At the top of that forum you can also find the 'Sticky' threads.
They contain useful websites, resources and other information.
I'm sure you'll find information and support there.
take care.