I have the same problem, I have alot of burping, and constant shortness of breath. Because of this I havent been able to exercise or even go for my long walks that I love. So far doctors havent been able to figure it out. But they said it may be acid reflux. Have you seen your doctor? Make sure its nothing to do with your heart. I wish you luck.
Acid Reflex. Something in your diet isn't agreeing with you. Do you drink a lot of caffein? There are many over the counter drugs that can help. Talk to your pharmacist.