minnietoty,I would kindly suggest you see your PCP for a complete medical screening exam as trying to guess what is wrong with you doesn't always work in your favor. Many things can cause the sx you are having and don't let this drag on.
Please know your post concerns me as my " chronic IBS" turn out to be a large colon tumor which has changed my whole life. I was dx in August 20,2012.
Not every upset stomach is cancer but don't assume it is minor either.
Gentle Cancer,
Kitt