What Could Itchy Dry Vagina With Yellow Discharge Suggest?

about two months ago I had sex and a few weeks later i noticed a foul oder that i figured came from my vagina. I thought it was weird but didn't do much about it. I noticed it was very itchy also. Had some white dishcharge and the smell went away about 2 weeks later. i still have white discharge and everytime i have sex i bleed and I am not a virgin though. I'm too scared to tell my parents because they dont' know i'm sexually acticve so it'll be impossible for me to see a doctor. i've noticed that my labias have been a little dry a little dry lately also. everytime i have sex sometimes it hurts but i don't really feel any pleasure from it either. i'm very confused, i did have yellow discharge, but now it's white .