Just wanted to throw my 2 cents in. I second what nanners said about
gall bladder pain. I had 2 ambulance trips to the ER prior to having my gall bladder out (we live a long way from the hospital). I was writhing on the floor in agony when the attacks hit. At one point, there was projectile vomiting. This was all before they found out it was actually gall stones.... so many of them, my gall bladder had collapsed in on them.
It could be one of many things but I just wanted to throw out there that although my Crohn's is in my terminal ileum, I typically only have pain just below my sternum.