Kidney patient with 3 years. currently having acute abdominal pain which last 4-5 hours every day. Test done sonography, ct scan plain, endoscopy and colonoscopy. but doctor have not found any cause of pain. some time pain starts when stomach is empty but some time its start with filled stomach. the medicine like tramadol and other antacid medicine not work for relief. normally the pain start at evening or early morning of 3am to 5 am.