Hi!
I'm 35, and of similar physical stature..I had also had/having similar problems. I would definitely do see your Gyn. My problems have been going on for months, and I finally went to see my Gyn when the blood clots I was getting started occuring every few days. It may just ne a hormonal issue, but for me, an ultrasound revealed some extra "tissue" in my uterus, which was casing the unusual bleeding, and I'm assuming the discharge as well. I am actually scheduled for a D&C and a Hysteroscopy on Friday.
i would definitly call your dr. right away. dont wait. you wouldnt be bleeding if there was not a reason. that for me would be a scary experience. you can rule out a miscarriage since you said you havent been sexually active and rule out a heavy period since you just had it. all i can say is call the dr.