I really need some help and advice

I am 23 and generally fit and healthy, I smoke and drink occasionally on weekends but have a well balanced diet. Around a month or so back I noticed a thick white creamy vaginal discharge, it doesn't smell bad and I'm not in any pain or experiencing it any itchyness. I started dating a guy around 4 months ago and about 10 weeks ago was tested for any stds to make sure I was clean for him and the tests came back clear. The thing is that the last time he went down on me he said that I didnt taste good. I'm worried about this, I want to be clean and fresh and not have any problems down there. Is there something wrong with me? I really need to know how to clear the discharge and taste good if possible. Thanks for any help and advice.