Last couple days, on and off, it feels like the air is heavy and wet to breathe, like when the humidity is up at 99% and it's warm, and it feels like you're breathing in water. But the humidity has not been near that high.

Is this an MG kind of thing?

(I don't "have" mg. I don't "have" anything, because no labwork says I have anything, and doctors here only read lab reports, not look or listen to patients. so while I have eye problems, balance problems, hearing problems, cardiac problems, breathing problems, thoracic outlet/arm circulation type problems, you-name-it problems, I don't "have" anything, since nothing prints out on paper. ophthalmologist is sure I have mg based on eye problems, but no one else will commit.)