From the symptoms you describe it could be a few things for example irritable bowel syndrome, but medical examination is the only way this could be diagnosed. It could also be intolerance to a common food ingrediant, some common ingrediants can cause the sort of symptoms you descrided, but once again tests at the doctor is the only way this could be verified. Are you taking any medication? (could be a side effect, people who take regular coedine can get excessive bloating). Hope this helps. Have you ever seen a doctor for this? Good luck.
iM GOING THREW THE SAME THING BUT i HAVE BLOATED/FREQUENT URINATION. i WOULD RECOMMEND GO SEE GASTRO. DOC.