Your insulin should be no greater than 10 and mine was 29 when i was 19, that was when i was first diagnosed with PCOS i was prescribed metformin (diabex XR) to help lower and assist with weightloss. Within 3 months i had dropped 9kgs. Only months later i fell pregnant with DD. Then 6 weeks after i had DD i had more blood tests and that time my result was 24 so it was better than previously but still very high.