I have the same problem, i recently had sex with my boyfriend yesterday, and ever since, i have had this "smell" that seems like if i can smell it than other people may be able to also?
all latex products do kinda stink, so maybe the stink got in you and you just have to deal with it like you have been. it'll be ok
It could be the spermicide on the condom, they don't smell all that great.