Kidney stones, yeah, can be surprisingly common and can feel pretty nasty when they hit. So, first off, you’re on point about the cause: kidney stones mostly form when there’s too much of certain minerals and salts, like calcium or oxalate, in your urine. They cluster together and form these little rock-like things. Uric acid stones show up when urine is too acidic, cystine stones are more genetic. Why some people get 'em more than others? That’s related a lot to genetics, diet habits, and sometimes other underlying conditions.
The pain, man, it’s no joke. Think of it like a tiny rock scraping down through narrow pathways. As for early warnings, you might notice mild discomfort or changes in pee color before the hellish stuff kicks in. But often, people don’t notice until they really start moving—ouch!
For prevention, drinking water is like your first defense. More H2O means less chance for minerals to build up. You’re right about sodium; too much can make you lose more calcium in your urine, increasing stone risk. Gokshura and Punarnava are big in Ayurveda for kidney care, said to support healthy urine flow and reduce stone risk, so they could be worth a try. Make sure you’re consistent, though, and check with a knowledgeable practitioner to get doses right.
Some folks do manage to pass stones naturally, especially the smaller ones—painful but doable. Hydration helps! Larger or stubborn stones might need medical help like shock wave lithotripsy, which breaks them down to exit easier.
Listen to your body and work with your doc. Ayurveda teaches us prevention is better than cure, so keep at it with preventive habits. Keep asking, learning, and adjusting till you find what truly works for you!