Vaginal Help! TMI

Okay, so about a 2 months ago I had my period and I used pads that were Dollar General brand because that's all I could afford at the time. After my period was over, my vagina and my labia's were really itchy?? I assumed it was because I have sensitive skin and the pads were a cheaper product. So after about 2 days the itching stopped I got this really weird odor? And it went away. but now it's back and I've had my period one other time since then and am about to start again soon. It's about to get alittle TMI, but when I masturbate (basically rubbing/touching my clit) my fingers have the odor on them and it honestly smells like cat food??? like what??? And I was like looking around down there and I have like a watery/milky discharge (or my "cum" idk)  that also smells like that? It doesn't hurt to pee and it also doesn't itch anymore and the smell can be faint and then sometimes it can be really bad?? I'm gonna go to doctor soon because it's freaking me out really bad, but I was wondering if anyone else has had this type of smell before?? I've been with the same guy for 5 years and we've only been with each other? I also was sexually active with him for 4 days before my last period? I'm just so worried. 😭😭😭