In my case had to do with diet. Eating food I was allergic to being careless caused kidneys stones that the doctors could not detect. MRI, X-ray had it all done

In my case had to do with diet. Eating food I was allergic to being careless caused kidneys stones that the doctors could not detect. MRI, X-ray had it all done after two years saw a natural path gave me kidney stone cocktail, pushed out some kidney stones and been back pain free for 7 years now