Kidney stones/ infection

Has any of you lady's had a kidney infection or kidney stones? I went into L&D on Wednesday thinking I was In labor but it turns out there was something blocking my left uretter so nothing could drip out into my bladder which caused back up and infection. They did surgery and didn't find a stone so they put stents in the uretters to hold them open so everything could pass through. OH MY GOSH ... this was the worst pain I've ever been in.. I really thought it was labor but this is my first baby so I don't know what labor feels like.