I do have the dx of MG.

So far the crises have spontaneously occurred upon awakening before 5am. There is no advance notice of impending crisis. I have 2 oxygen units (in-home and portable) and a Bi-Pap unit. The pulmonologist has yet to return my call even though I mentioned the urgency.

If another crisis hits before I receive an answer, I'll kick up the oxygen level from 2L to 4L without hesitation.

Why working with doctors must be an uphill battle is beyond me.

Thanks again for your response.