Vagina Trouble

I am feeling self conscious about my vagina and have been for a while...I'm working on it. I did buy a vaginal wash and powder to put in my underwear everyday 🙃 but today my boyfriend tells me I sometimes tend to have a stinky vagina "smells like fish" except not really fish though.

I did notice that when I eat certain things earlier, I can smell it later in the day. I don't know what to do!!!!!!!!! 😒😒😒😒 my gynecologist is a fucking idiot 🙄even though he's good with the exam of the vagina but outside of that "nothing"

I've talked to my mom about it. She thinks it has a lot to do with my eating habits and gut system. Also thinks I should do detoxing and diet.

Help!!!!

Update: I don't have STD and I don't have discharges. I get tested every 6 months or year. I even get tested when I have a new sexual partner. I usually keep to myself when single except for last year but I got tested.