Hi. I passed a small kidney stone about 2.5 weeks ago. Since then I feel as if I have a UTI. My urine was tested at the hospital at the time of the stone and there was no infection. I am having a burning stinging sensation as well as urgency. A full bladder is very uncomfortable. Can passing a kidney stone irritate the bladder? I used to suffer from what my doctor called "bladder irritation" with no infectious process present.