@KoiwiGal - To some extent that's true, but remember that kidney stones can be dangerous. They aren't only painful, they can damage your kidneys or your ureter. So, don't just rely on the herbs and grit your teeth.
Do go to the doctor, because if there is enough of a threat to warrant it, they will take measures to break up the stones, or even operate to get them out.
Modern diets mean that the average kidney stone is probably bigger than they used to be. The herbs no doubt work well enough, but modern medicine shouldn't be discounted either.