PCOS is no excuse. I was diagnosed at 16 and was very thin until I started drinking quite heavily around 21. My symptoms got way worse around that time with the added weight. Noticed what I was doing to my body and lost all the weight within less than a year. I'm now 28 and haven't gone above 135 since then. I get so sick and tired of people using this disease as an excuse. For almost all cases, weight loss helps reduce symptoms exponentially.