Dear Sir, My son is complaining medium to heavy stomach pain specially after eating. It remains hardly for 10 to 20 seconds and then get relief immediately. 80% of the occurance observation  is after eating within 30 mins this happens. This has been happening since 4 to 5 months. We have shown to MBBS doctor here and did USB Abdomen & pelvis sonography too. It shows few subsentometer (short axis) sized lymph nodes showing no necrosis or matting are seen: predominantly I'm peri umbilical region. otherwise rest are normal in report. Doctor advise on some food habits and given some medicine but still it's continues. Could you please advice?