Why dose this happen?!

Bleigh
It takes me forever to get rid of it, I think it's a yeast infection but my doctor says it's not and another doctor says it is, I don't know what to do! Every time after my period The smell comes back, and then my pee is cloudy which makes me think it's a yeast infection. It takes me forever to get rid of it and then when my period comes back, it comes back! Please tell me what I'm doing wrong I don't know what to do! 😢😢😢😢
Ps, I don't come on here that often. only to get answers so I don't know what category to put this in but please help!