I believe I ve caught a stomach bug as I have had diarrhea on and off for 5 days. I ve got a lot of gas in my abdomen that seems to spread to my chest, left, center and sometimes right. Sometimes I get tiny, very slight pulls on my left side that last from 1-2 minutes (these occurred before the stomach bug and might be from lifting my boys up to the basketball hoop to dunk as I ve had this sensation a couple years ago after doing that exact same thing). I have no problems breathing, no sharp pains, just very bad gas and stomach. Can a stomach bug cause these symptoms?