I ve been having upper-left abdominal discomfort for weeks now. I say discomfort, because it is not really painful. Anyways, I went to the Dr and he put me on Omeprazole once a day due to my past years of heartburn and constant heartburn. I also went to get a few tests done. H. Pylori breath test negative , blood test normal except a slight decrease in the good cholesterol, stool test normal . However, I still get bloated and lots of gas about 2 hours after a meal no matter what. It s not painful just very annoying. I also have bad breath, even though I brush and floss 3 times a day and I have mild back pain between mid and lower back, sometimes upper back.