Diagnosis is achieved by reviewing both family and patient medical history, evaluating the
symptoms, and performing an examination to rule out
other causes of the
symptoms. Other conditions that should be ruled out to arrive at a diagnosis of abdominal Migraine include: urogenital disorders, peptic ulcer, cholecystitis (gall bladder), Crohn's disease, and irritable bowel syndrome.
ref:http://headaches.about.com/od/migrainediseas1/a/what_abdom_mx.