Last week my RE finally confirmed PCOS based on an ultrasound and my irregular cycles. He prescribed metformin and I'm currently taking 1,000 mg per day and need to increase to 1,500 next week.

I haven't had *awful* side effects besides nausea that comes and goes and feeling very tired and at times a little lethargic.

I'm not overweight and as I far as I know do not have any insulin problems. Should my doctor have checked that prior to prescribing metformin? I generally feel better around 15 minutes after eating and it lasts for about an hour. But I can't eat all day to curb the symptoms or I will be overweight! Any advice?