Jane, If it were me, I'd stick to the plan in place. You may not even need to see a N-O. Being seen right away, especially in your current condition (meaning not stable) is the best plan. Do you live close to or in Florida?
Do you know the MG specialist you are going to see? That's the one point that might concern me. If they are just tossing you to a MG clinic, where a resident or a "regular" neurologist were to see you, that's not what you need. You need a MG expert to help you. Make sure you know WHO they are referring you to. You can easily research the reputation of that doctor once you know.
It just isn't enough to go to a MG clinic.
Hope that helps.
Annie