Dd is 2.5yrs, been toilet trained for 4 months... had a few accidens in the first few weeks and not many since, maybe 3. Yesterday she had 3 wee accidents and today has had 6 so far. She wees in her undies before she asks to go to the toilet then does the rest in the toilet. Seems very odd to me... could she have a bladder/urine infection?