I had a kidney stone when I was 16. I went to the hosptial and I was in so much pain. They had to give me shots like every hour just to numb the pain. Anyways, they did some x-rays and found out it was a kidney stone. The next day, they did the x-ray and found it was gone. Then, oddly enough I started to get pains again and it came back. Like it was floating around and doing a dissapearing act on the doctors. Well, he wanted me to have surgery. Was deathly scared of that but then the pain went away. He let me go home, well I never did find out if I passed it or not. It was not any bigger than a tip of a pen..thats what my doctor said. Anyways, I either passed it or it dissolved in my system. Now I'm 21 and I have no pain at all. So, don't worry..it will eventually go away.