My recent USG showed bilateral polycystic ovaries. Both the ovaries are mildly enlarged with multiple tiny cysts peripherally arranged. I have irregular periods for ten years. And three years ago, I showed the doctor for these tiny cysts. I took Metformin and Normen according to her advice. But I stopped it after four months. Should I continue the medication again, and for how long? Please note my prolactin and TSH is at a normal level. Do I need any further investigation? Kindly guide me.