My daughter's stool have been more than usual over the past few weeks and for the past week she has been having problems holding her pee and poo till she gets to the loo. any advise?

Doctors can examine: Her pediatrician can evaluate. If due to constipation, a person with constipation needs to be sure there is no other disease causing it. If constipation is just due to slow movement of the food and poop through the gut, then the things to try are vegetables, water, fiber with water, prune juice, prunes, polyethylene glycol, Senokot or other senna, milk of magnesia, etc...