Vaginal nightmare

Im 23 never been sexually active and have been having issues with fish smell and itching on the outside. Gyno prescribed some vaginal cream for the itch and did a swab which tested for bv and another bacteria and everything came back clear . He is trying to monitor and maybe run more tests. He did screen for an std which also came back clear. He said my vaginal discharge is normal and i even went and bought one of those ph tests which said my level was 4.5 so atp im lost . Its getting to the point where even after a shower i can smell myself not too long after . I only use water down there as of two months ago and before i was doing a boric acid treatment and vaginal wash. I mainly drink water and my diet is okay less meat more carbs and certain fibers... i just need something to tell me whats wrong