I believe that you may have VB otherwise known as bacterial vaginosis, a very common bacterial imbalance that women get. I myself get it often from many things, sex, lube, wet bathing suits that I keep on for too long, tight g-strings etc. Anysituation where bacteria can flourish there can cause it. There are many ways to treat it naturally without antibiotics but you'd want to get it proprly diagnosed before you went any further. It could be trich(an abbreviation) which is transmitted sexually but also easily cured. A gyno could put the discharge under a microscope and tell you for sure. That would be your best bet. BUT if it is VB look into some natural cures that address the cause and work with prevention because if you are prone to VB then it is something that will come back given the right conditions and can be very bothersome. Since your on the internet do a google for natural cures for vaginosis. Good luck.