Please help, so worried!

Scince January ive been getting sharp pain in my right lower abdomen. The pain is sharp and has been constant scince April with no let up. Ive seen my GP 3 times and ive also seen my peadiatrition and a registra but no one seems to be able to work it out, my GP just tells me to ask my peadi but i dont see him often enough to get very far (he has a huge waiting list). Ive had blood tests and an ultrasound, all of which were clear. If you have any idea what this could be please help me.

Additional information :

*im a 15yr old female
*i was diagnosed with coeliac in december 07
* the pain started about 5 weeks after starting a gluten free diet
* i have benign hypercalcemia (high calcium that doesnt actually affect anything)