My daughter has been "holding" her urine for excessively long periods of time--12 hours one day and 191/2 on another. She is 3 years old and not toilet trained..she has a fear of releasing into the toilet. We have changed nothing in the last 3 days, but she did have a UTI at the end of November. I am a bit worried about this, but was wondering if I should pursue something immediately or wait and see if it is a behavioral issue. Thanks!