I also have PCOS and was just recently diagnosed. I did a lot of research on PCOS after I was diagnosed with it, and here is what I found. A lot of research is suggesting that PCOS is also an autoimmune disease like T1. There is also a MUCH higher incidence of PCOS in Type 1 Diabetic women. This is because, as T1's, we frequently use higher doses of insulin than a non-T1 person would use (for example, to bring down a high blood sugar.) Having large amounts of insulin in the body messes with our sex-hormones and can cause higher-than-normal levels of testosterone, which can cause PCOS. I suspect that a lot more T1 have PCOS and don't even know it. I also think I've had it for years, because I was diagnosed with ovarian cysts in the past, and I've always had unpredictable and very painful periods.
Treatment-wise, I've heard of several different options. There aren't any PCOS-specific drugs out there, but the birth control should help to bring your hormones back where they should be.
Anyway, hope that helped.