How do you stay fresh all day down there?

I know all vagina has a different scent, but musk? Like 2-3 hours in at work my vagina smells like a fresh sliced white onion and I sit at a desk all day. I don't use bbw or anything smelly down there, I drink water, I don't eat foods that would cause that smell, like wth? Not to mention my panties sometimes be wet from sweating down there and I'm note oversized, no offense to anyone that is, just trying to find out wth going on.....