I’ve been on Protonix now for over a month. I’ve NOT noticed a difference in my breathing. Although the GERD still appears from time to time. The excessive yawning continues, the need to take a deep breath more often than normal continues. Sometimes I get that deep breath easier than others. It appears to be happening more frequently. As per the advice of another poster, I’m trying the Primatene spray although it doesn’t seem to be having much effect. Nothing beyond has seemingly changed. I still run freely and without much interference with my breathing. I’ve noticed recently that more strenuous exercise like climbing hills or stairs make my legs more tired that I remember but that could be just normal aging, conditioning or lack thereof issues. Still wake u every morning with normal BP and an O2 Sat of 98-99%. Maybe it’s a diaphragm issue?!?! At my height, I could probably stand to lose 20 lbs. perhaps the diaphragm is compressing and now allowing the lungs to properly expand?!?