Hi. Thanks for your query. The commonest reasons for crumbling of the abdomen and flatulence are: Intestinal infection and imbalance between the normal commensals of the intestines and the bad bacteria. The overgrowth of the bacteria causing gas productions and causing rumbling all the time. Aerophagia meaning inadvertent swallowing of the air. This in turn can be due to stress and anxiety. Intestinal obstruction and so on. I would advise you the following: X-ray of the abdomen in standing position. Ultrasonography to find stones and other conditions. CT scan of the abdomen. Examination of the stool and blood. A course of an antibiotic, metronidazole, anti-depressant if required and probiotics along with activated charcoal and enzyme preparations.