ok, well me and my boyfriend had sex about two days ago and everything was fine. but this morning my vagina area was itching really bad so i was scratching it. then i felt that my left lip was swolen really bad so i got a mirror and looked at it and it was really swollen and red. my right lip was fine. i dont kno whats wrong with it. i have had sex with my boyfriend many times so if this was an std wouldnt i already got it a long time ago? we have been having sex for a year and a half. help me plz!