I have PCOS too...I've had symptoms every since I started gaining weight in my mid-20's.
At one point (at my highest weight), I was only getting 2 or 3 periods a year. I've lost 78 lbs since starting pre-op, and since surgery I've gotten a period every 4 to 5 weeks. But, the problem now is that I have 3 week long periods.
I was at the GYN last week, and he wants me to have a D&C to even out the endometrium lining, and fix the bleeding problem. I'll probably be having it sometime in October.
He also cautioned me about using protection, and said it would be alot easier for me to get pregnant now.