Hi @tamaracaitlin welcome to the thread. When I posted the original post two years ago, I never thought it would get so much response from people with similar issues! But here we are, pages and pages later full of posts of people seeking relief. That's interesting about the air bubbles in the chest cavity. I wonder how it would gotten there- I guess I didn't know there wasn't supposed to be air there. But when I was at your point with my air hunger problem, I was also seeking doctors and specialists just to rule things out. I would keep getting various tests to rule out as much as you can. But now I am managing it on my own. The Buteyko breathing method I mentioned in the original post is what is helping me to manage the issue along with mild to moderate exercise, as much as my breathing will allow. I hope yours goes away entirely, but there are many things to try to at least manage it to where it's not so bothersome all the time.