.Hi... I have just read through your question. Whatever you are describing is called Chronic Pain Abdomen in medical terms. The differential diagnosis of abdominal pain in children varies with age, gender, genetic predisposition, nutritional exposure and many environmental factors. The causes are many including - constipation / acid peptic disorders / inflammatory bowel disorders / irritable bowel syndrome / worm infestation etc. I suggest you see your pediatrician or a pediatric gastroenterologist for this. Hope my answer was helpful for you. I am happy to help any time. Further clarifications and consultations on Health care magic are welcome. If you do not have any clarifications, you can close the discussion and rate the answer. Wish your kid good health. Dr. Sumanth MBBS., DCH., DNB (Paed).