I have chronic burning that starts under my left rib then it moves to my right rib or the left or right side of my belly. I have changed my diet and that made no difference. The pain will go away for a few minutes once in a while, I have the pain day and night. It feels like the food is digesting slowly and when it passes certain areas that are a problem, the pain is there. Sometimes it feels like a side pain that you get while running. I have NO constipation, diarrhea, bloody stools,fever or dizziness. Sometimes I get bloated. An ultrasound was done and it was okay. Do you know what the problem could be?