Just need experience.

So I'm 16. a couple weeks ago I was getting crippling pain in my stomach. I thought it was my appendix but luckily it wasn't. I went to my family doctor and she said that it was a UTI. So she gave me some antibiotics and what not. So I took them. The pain went away. But I feel like maybe it didn't all go away idk. Like I've got a funky smell down there and I have to pee a lot. My pee is cloudy. I don't really wanna go back but does anyone know of anything safe I could do at home to try to nip it before I go back?