@SarahGen-- That was not the case with me at all! I had severe pain when I was passing a kidney stone. I've never felt a pain like that before in my life. It was awful!
Also, it's not possible to diagnose kidney stones without medical testing. Of course the location and intensity of the pain is important. But sometimes, pain in one organ can be felt in the neighboring areas, so it can be difficult to pinpoint where the pain is coming from. At one point, I was also having spasms and I could feel pain everywhere -- in my abdomen and my back. So there was no way I could have known what the cause was without going to the hospital.