It could also be a uti .... I have a dcg that was just over three when she started with me and was going pee constantly .... I cut back a bit on her fluids at her moms request then one day she was totally panicked and she walked circles around my play room and went to the bathroom every 10 mins we went outside and she walked circles around my van and she had this worried look on her face. So when mom came to pick up I told her and suggested she get checked out cause she might have a uti or a bladder infection ..... And sure enough it was the beginnings of a uti and she drank cranberry juice for the next few days ..... So maybe suggest to the mom to get cranberry juice .... Can't hurt!