Odor down there?

So i hooked up with this guy weeks ago and he ate me out he asked if we could hook up again and i said okay. Anyways he said that i didnt smell the best last time and that i should clean. I think that i smell fine i always have good hygiene. The guy i hooked up with didnt mention it till today so i couldn’t tell my gyno too

My guy best friend is always making jokes about how i smell bad there too and that he talked to ppl that have slept with me but hes only friends with one of my exs and doesnt talk to the other people. I went to the gyno after the hookup like a week later and she didnt say anything about it. How would i know if i smell bad down there and how to fix it?