I realize this is a little off topic, but I have had such good results with my CPAP (Constant Positive Air Pressure), that I wondered it if might not be a good support for your diaphram?

I know when i'm short on oxygen, i get "stupid", it definitely affects my cognition; as opposed to when I am high in lactic acid in the muscles, which is much more a feeling of panic. In my case both are the result of the arterial system's inability to uptake an enzyme that keeps it flexible and permeable, so gasses, nutrients and wastes can pass the capillary walls.

This means i have trouble getting oxygen in as well as getting CO2 out, and nutrients in, and wastes (such as lactic acid - a byproduct of muscle exertion) out. I always favor a treatment that does not involve drugs, if at all possible. I hope you find something that lets you breathe, i know that terrible feeling of gasping.

Best Wishes
StormE1