Recently I’ve been having a lot of stomach problems. In the past month or so I’ve had two flare ups where my stomach gets extremely extended (looks like I’m about 6 months pregnant and none of my pants fit) for three to four days. I have normal bowel movements during that time and am able to pass gas although it feels like trapped gas. No amount of tums help. This last time I developed a light rash on my upper abdomen (almost like a band where it reached around to my back). I went to the Doctor the first time and was told it was a bacterial infection. It went away the next day. Could I really have had another bacterial infection or is there something else going on? I definitely have IBS but nothing this bad before.