Odd smell

I noticed in the last couple days that my vagina has an odd smell, it’s not fishy or really bad, but it’s very strong I can smell it when I open my legs after having them crossed. I only notice it after I’ve been at work for a few hours, like maybe me sweating has caused it or something. There’s not any itchiness and not really any burning except once like 3 days ago while having sex. No abnormal discharge. It’s really embarrassing as I’m sure others can smell it but I don’t know what to do.