Just wanted to give an update on my situation. As I mentioned earlier, I had covid around Jan of this year. Since then I've been experiencing the air hunger feeling. All of my test results have come back normal. In fact, I'm pretty sure that this condition is not lung related since I can workout, run, and otherwise perform normally. My doctor believed it could be related to acid reflux triggered by covid. I tried omeprazole for one month and it helped a little bit, but I gave up on it believing that it couldn't be acid reflux since I had no other symptoms. I also tried anxiety medications and inhalers with no improvement. Then one day out of the blue, I was sitting at my desk and I started feeling acid coming up into my mouth. I called my doctor and he prescribed me pantoprazole. I've been taking pantoprazole now for almost a month and I feel it has improved my condition about 90%. Definitely much more improvement than from omeprazole. It took some time to feel the difference. It wasn't an overnight thing but rather a slow healing. I also gave up drinking coffee, soda and eating late dinners. If I take a deep breath I still don't feel it's always full 100% of the time. However, the nagging air hunger feeling is completely gone. I think there's definitely a connection with acid reflux since it can be triggered and worsened by illness, anxiety, diet, etc. Once the cycle starts, it's hard to break it. I'm planning to stay on the pantoprazole and will post another update in a month.