I posted on the forum earlier this year about a very similar situation that happened to me. My pediatrition had said that it was probably just a stomach bug. It continued and the sent me to the hospital for test and found nothing. The pain went away after a few days then came back about a MONTH later! This time we went to my CF center/ Children's Hospital an hour and half away and they did more tests. Still nothing so they performed exploritory surgery. They thought maybe there was a cyst on my ovaries or maybe a tumor somewhere, or possibly my appendex but knew nothing for sure until they opened me up. It was in fact my appendix had ruptured. The mucous had formed a kind of seal that kept the poison from spreading too far! This was back in 1993 and they said they had only heard of a couple of other CF cases like this. Pretty crazy stuff! I think non-CF doctors just aren't aware of these incidents so they overlook it. That's why when it comes to just about everything, I talk to my CF doctor b/c things are so different for us and they understand our disease way better than your general doctor. I still remember the pain I was in to this day b/c it was AWFUL! Sorry you had to go through the same situation but glad things were taken care of before it was too late! Take care!