Honestly, I don't know if I have PCOS or not, but I am a type 2 Diabetic and have been on Metformin for over a year. I only take 1000 mg of it a day (two 500 mg pills). I haven't noticed any side effects from the drug but it did not always keep my blood sugars low, so now I have other things I have to take with it. As for weight loss, it never gave me a decreased appetite or made the pounds fall off without me curbing what I ate, but that's just me. The things I did notice that Metformin does for me is steady my weight and stopped it from climbing higher. Also the little hairs I would get on my cheek or under my chin
it slowed them from growing. I hear that a lot of people take the drug to help them with their PCOS. Perhaps you could ask your doctor about it and see if it could help you. Best wishes.