Post as much as you want!
When I had symptoms but no diagnosis I joined a whole lot of forums, and posted an awful lot of questions. After my diagnosis I wanted to know everything about MG, because I didn't feel like the stupid descriptions fitted. And when I asked my docs about some symptoms they said: that's not MG.
It's so uncertain, you have to wait and can't ask anyone because you don't know anyone with MG because it's rare.
(And, I too hoped I had a problem with my thymusgland, because I was also told that an operation is almost the same as a cure - it's not that weird)
So hail for forums: I learned a lot. It helped me a lot.
Don't be afraid, if you want to ask something or just spill it out, it's what we're here for.
Good luck anyway