Hii , Welcome To HCM & Thanks For Asking Your Query Here from the medical history you provided you most probably have a stone in Urinary tract most probably in kidney but seriously it needs physical examination along with thorough investigation before making any confirm diagnosis however this pain can be caused by variety of other medical conditions including spine and neurological origin but those caused by spinal and Neuro rarely cause frequent urination and incontinence i would strongly suggest you to visit A Urologist who is specially trained for this kind of problems he will examine you properly and will probably do all necessary medical investigations including blood test , urinalysis and Xray & ultrasound etc. to rule out underlying cause of your problem I hope it help Thanks Again & Get well Soon