I welcome you to health care magic for your health concerns I am Dr Fahim, General Surgeon and I will be answering your query I have gone through your question and understood your concerns. With available information it appears to be something is irritating your urinary bladder muscles to contract. The most common cause is infection followed by stones causing stasis of urine. Female urinary tract is at greater risk of developing UTI because of the short urethra. To reach a diagnosis you will need a routine urine examination in lab. It give us hint whether it is infection or stone. Ultrasound KUB is the other investigation of prime important. If both studies comes to be negative, your doctor may advise you some urinary bladder muscles relaxant medicines. Wishing you and your daughter all the best and rapid recovery. I hope my answer will help you. Do rate my answer if you like it. Regards