Poipoi... Gud day... I dnt know what it is... Bcuz I'm nt an Md... I dont no what it looks like or ne thing... I wouldn't stress it... Until a docz appt. And they run some test and say something is DEFINitely wrOnG!!!... But otherwise then that... Leave it up to the docz... It cud b a hair bump... Or boil... But def get that checked out....
You might get tested just to rule out anything serious like an STD.
I have the same problem in the exact same area. I'm very worried as to what it could be as I've never had anything like that before. I'm sexually active with my boyfriend too. And I'm really scared but glad I'm not weird or anything. I haven't heard of what it could be or what causes it, but if I find any info, I'll let you know.