help bc idk what to do

So about a year and a half ago I first felt like something was wrong with me. And I mean like my pH balance was off or something. I went to the doctor after trying a year infection home treatment bc my mom thought that might be the cause of my problem. My doctor told me I probably had BV and gave me antibiotics. After taking them my discharge was still clumpy, but white. But sometimes it would burn and I would almost constantly itch. Time went on and I dealt with the itch and pain. Around March 2016 I made another doctors appointment. They said they couldn't see anything wrong with my discharge. They changed my birth control and I thought it fixed everything. I went three weeks without pain or itching and then I became sexually active. I got my period a week later and afterwards the itching and clumpy discharge returned. Since I was away at college, I made an appointment for the time I got home to get everything straightened out. This time I went to a gynecologist who told me I didn't know how my own vagina worked and sent me home. I've basically been living with it ever since. There are times where it'll go away but the discharge always returns and sometimes turns yellow. It's typically while I ovulate. Also if I have sex during this time the discharge literally burns during sex until it is literally fucked out of me and my boyfriend (that wonderful man) will help clean me up. So basically I just want advice or stories or something telling me I'm not crazy and that maybe there is something wrong wth me.