@chines118 I had the same thing happen when my SOB was especially severe. I had multiple panic attacks caused by the intense feeling of suffocation. My breathing exercises helped me a great deal but I haven't recovered 100%. I would quit caffeine (coffee, soda, etc.) and eat smaller meals throughout the day instead of large ones. Exercise, but keep it light - to what you can handle with your breathing - and try as much as possible to only breathe through your nose. Refuse the urge to take a deep breath when you possibly can, and breathe through your nose all the time. This helps you to not over breathe so much and may help regulate your breathing. It's difficult at first, but it helped a lot for me when I did it. I still only breathe through my nose and if I have to take a deep breath, it's just through my nose. I lift weights for exercise, I don't that much cardio (just walking whenever I can), and when I lift weights, I don't overdo it; I do as much as my breathing will allow which sometimes is a lot, other times not so much.