Hello Tara - I immediately noticed your comment that you have a lot of mucus in your throat in the mornings. That is a perennial problem for me, and I find it can lead to feeling short of breath because I try so hard to "cough it out."

I am wondering if perhaps the problem may be in your sinuses, tonsils or adenoids - maybe the mucus drains and pools while you are lying down.

A couple of things you can try are shown in this video:

Also, with mucus, one way to help thin and clear it is to drink a lot of caffeine-free and sugar free fluid. One thing I use is an herbal tea called "Breathe Easy" by Traditional Medicinals - easily available in larger grocery stores, health food stores and on line.

Also, I see you have tried the Air Physio device - was this prescribed to you by a doctor? Were you given instruction on how to use it effectively in person? Have you seen your doc since this began?

Sue