I am a 17 year old girl and I have white discharge coming out of my vagina this has been happening for about 2 years at first I thought it was a yeast infection so I got some medicine from the store and it didn't do anything then about 6 months ago I went to the doctor for a rash on my skin he didn't know what it was so he gave me steroids for it I took two bottles of steroids and it finally went away only to find out it was a yeast infection on my skin I also had spoken to him about my discharge he said it was completely normal as long as it didn't smell fishy and all women get fungus and it will go away on its own it did not it smells like vinegar and it is pure white not clear sometimes it is pasty other times it isn't it is gross and I do not know what to do? What do you think that this is? And how do I get rid of it? I also sometimes get pelvic pain it's not excruciating pain