I meant, how high can you count on one full breath of air? Ten is not good at all and if you are short of breath talking or eating, you probably need to be at the hospital to be assessed.

Being unable to yawn was one of my first ways of describing to the ER doc what was going on. I could not get a deep breath in. What it actually is: you cannot get your diaphragm to push down, that is the muscle affected. Having tachycardia is a sure sign that your body is under stress.

They need to check your vital capacity, your negative inspiratory force (NIF), and most importantly your arterial blood gases (ABG). The first two are breathing tests and the ABG is a blood tests that is not fun but will tell them a lot.

Unfortunately, people w/ MG have to often educate the people treating them to get the help they need.

You sound like you need help now.