Who ordered the oxygen, as in an earlier post you stated you had "finagled" a script for it? Didn't you have a pulmo appt today? If so, what did he/she say? MG is not ordinarily treated with oxygen, and if you haven't been properly trained in its use and indications for its use, it can be a problem.

Getting a diagnosis isn't always easy, and you have a lot of other things going on as well. That all makes it more difficult, especially when multiple doctors/facilities become involved.

Good luck.