A couple of days ago I started getting itchy and thinking I had a yeast infection. I've been on antibiotics for a sinus infection, and was on other antibiotics for sickness a couple of weeks before. Yesterday I went and bought the cream and tablet, and realised when I got home I was having yellow discharge, not at all like yeast. I've booked into the doctor, but would really like to know what I might be expecting to be diagnosed with. I'm sexually active and while the possibility of a STI is not awesome I think I can deal and would just really like to be better armed when I go in. I thought it might be BV but there isn't a hugely strong smell and it's very definitely yellow discharge. I'm my first month back on the pill.