Thanks for responding. I get the discomfort first, on my left side and back area. I'm wondering if the back is a referred pain. This is accompanied with a feeling like I haven't fully emptied my bowel and burping and passing gas. If I passed enough gas this seems to alleviate the symptoms. I'm making an appointment with a gastro doctor to find out if its IBS or whatever. I can have semi-diarrhea as well as constipation in the same day.