PCOS help

I am just curious about those who have PCOS if they have know that they have had it since they started menstruating or if they developed it later on. I was always regular before the pill and now that I'm off for four months my cycles are messed up. Have been averaging 40 days when it used to be more in the 28 range. Also my acne has gotten really bad. Just curious if I could have it or just side effects from getting off the pill!