How do I help my 6 year old daughter with her leakage?

Hi my daughter has the same problem. This has been happening since age of 2. When she learned to go to potty. She kept peeing. I feel your struggle. It smells so bad. My daughter is 8 turning 9. She in grade 3 and wears pads to school. She goes to bathroom with a little back pack to change her pad. That she does about 3 times a day. It’s like she has her period every singalong day. Her first dr said she was jealous of her baby sister. Finally after pushing we went to sick kids hospital. We’re they said this is urinary incontience. Sure that’s been 5 years of bad drugs taking peg for stool softener. Until this year I lost it and said the drugs don’t help her she leaks everyday. She tells us she doesn’t feel it coming out. Until her pad is full and starts to leAk into her underwear and pants. It’s totally embarrassing but her life. She very popular and I honestly don’t know how no one has seen her yet. She only wears black pants cause if she changes no one will notic, oromg shirts or skirts. But the pads really help catch some of it. There the thin pads. She learns to put and take them off. But it still leaks. It’s so frustrating telling her go to bathroom, did you go to bathroom, do you hand to change? Every hour. Now the dr are finally doing an mri and mru because when I said she constantly leaking. They think one of her tubes from her kidneys is not connected to the bladder. Do it would cause her to leak from her vagina! This is so crazy we been going there this long and after 6 years she finally doing a mri. So I will know in 2 weeks. Your not crazy and it’s so hard on the whole family. And your child but u have to push those drs. Because no child wants to urinate them selves why there no reason. It has to be a medical problem. Good luck