I was just diagnosed with PCOS on July 13, 2009 and was prescribed Metformin. This drug is typically for diabetes but known to help PCOS and promote weight loss. I am just curious if anyone else on this site has PCOS and if so were they prescribed Metformin? did they lose weight? and did they begin to have normal menstrual cycles again? I have been taking this since Friday 500mg twice a day. Until today I felt fine. Today I have been a little nauseas........ still seem to have the same appetite. I am very frustrated as I am 5'11 and weigh 257 lbs. I coach softball and attend a gym and am not lazy by any means......but have consistently put on about 20 to 25 lbs for the past three years........ It is depressing. Can anyone offer any thoughts........especially if you have the same problem and are on the same medication. I need some hope..........thanks