DD is 6 she has been weeing frequently for around 6 weeks. She has had her urine dipsticked at the drop in doctors who said it was fine, no infection. So what could be causing this frequent urination? She wakes in the night twice to go to the toilet, which she has never done. And she is saying she needs to wee about 20 times a day!! She says its not hurting her. Could this be a phase?