I dont know if it is the same as you but for about 4 months now I have had SOB! I Feel like I cant get a deep breath and when I do it will make me yawn or I will try to make myself yawn to get a good breathe my doctor done a chest xray it came back fine! Mine is constant too no matter if I am setting or up moving around. I am on protonix and a fluid pill but nothing is helping!