Stomach pain last 3 months. i done colono&endoscopy, blood&urine test, ultra sound, i hve small cristals and hemorroids bt pain still i hve pain why?

Your doc: Since you have a doctor who has discussed your symptoms more thoroughly with you, it's probably a better idea to discuss with her/him the possibilities for your stomach pain, as you have already had several tests. Food allergies and sensitivities (lactose, gluten, etc) can also cause stomach pain, and if your imaging studies show no physical reason for your pain, allergies, etc, are next.