Found this discussion forum while googling for SOB. I am experiencing SOB for about 2 months now. It started for no reason I know. I went to see my primary care and did an xray and ekg. EKG was fine and xray was clear. My doctor thinks it could be GERD related so he prescribed me prilosec. Been taking it for a 2 weeks now. The first 4 days my SOB was a no show and was so glad to be able to breath normally again. However, after that, the SOB came back. I noticed that my SOB attacks happen mostly later in the day. The other thing I noticed if I burp or release gas (by a lot) it relieves me. At the moment, it is still a big mystery on what's causing it.