1) Humaworm has an age appropriate cleanse for children. We have done it with all our children. Feel free to inbox me with any questions or always ask here!! My children did go through a detox as they cleansed but it was so worth it! My child had a whole host of things going on that this cleanse helped immensely!
2) My son is a frequent urinater....when we took him to his ped, they ran some tests and his conclusion was this; he sees at least 4 children a year with this problem in this same age (my son is the same age as your child)-they are oober sensitive to the sensation/realization that they have to go to the bathroom and become hyper sensitive to the need to urinate so not to have an accident...she could just be super sensitive?
3) Lastly, my children were both poor sleepers before the cleanse...I'm not sure if it is coincidence or not, but MANY things have improved since doing the cleanse. It's not a miracle thing, and will not get rid of everything, but it does help!!
Best of luck to you! Always here to help if needed!