Yes I do. I wonder if it must be anxiety because, like Gabe, I’ve had numerous tests and I’m very very physiologically healthy. 62 yo. Sleep, heart, Sa02, bloods, BMI, diet, exercise and lifestyle all great. Love my work as a nurse. Very often, I have to lean over with hands on knees or attempt to “pull in” a deep enough breath. I yawn so much. It feels pulling air in through too big a tube versus pulling air in through a narrower tube - which seemingly gives me the pressure needed for a satisfying breath. A satisfying breath feels like the lower part of my left lung (or diaphragm) is getting a good stretch. I need to use my upper accessory muscles to achieve this.