Asymmetry in breast size; unevenness in the size and/or the drape of the vaginal labias; and for men... an imbalance the way that the testicles hang is quite common... normal... and not unhealthy in the least. It only seems odd... but believe me, it's not. "i"
No doctor has ever mentioned it because they've seen so much variation among female genitalia that you don't seem unusual to them. And you're not. Sure it's odd, but unusual? No. You're fine.