I have not had acne since I was a teenager, now I am 26 and it is back. When I noticed slight weight gain as well, I went to my OBGYN to check for PCOS, and it so turn out I was diagnosed with it. He prescribed Diane 35 for 6 months, and I am fearful of gaining weight. I already eat very well, yet I see the pounds coming on.Will the Diane exacerbate this weight gain?