receiving head gone wrong pt2

i had left a topic discussion thingy on here a little bit ago about this, but long story short my bf of abt 3 yrs on and off was going down on me and stopped and i asked him why and he didn’t wanna tell me, but after asking him a few more times he patiently and kindly told me that i just had a funky smell down there. it’s not weird to me bc i’ve never rlly had a different smell? i went to the doctors and got a pap smear and i had zero results of any std’s or infections. i wear cotton things often and sometimes boxers. i don’t ever use any soaps just water. i don’t shave too often just bc i hate the irritation i get from it after. what do you think the funky smell could be?