Kidney Stones...

alright so my sister just called from her appartment down at her college and said her side (left, so no appendix) was hurting real bad, she mentioned earlier today when she was home, but it really wasnt bothering her, well she just called and having someone take to the hospital, so my parents went running out the door to be there..... idk its just kinda freaky, im thinking kidney stones cause she doesnt drink hardly at all and is active and all that so thats all i can think of right now...