Ok so I think I have trichomoniasis. I have all the symptoms, the itchy and burning, the soreness and the yellow smelly discharge. I've only had one partner for over a year and I'm his only partner. We both lost our virginities to eachother. I know trich is an STD but how would it have came randomly after a year of sex? I know the symptoms of trich are very similar to a yeast infection, the only difference it the discharge. Someone please give me answers it's getting worse and more painful. I want to go to the doctor but telling my parents is worrying me. I was just gonna say I have a yeast infection and I need treatment but I don't want them to find out. And yes I'm 18 but I have no way to the doctors without them finding out.