I was put on metformin at the beginning of the week and while I have been lucky enough not to experience nausea but it has (tmi) sent me to the bathroom a few times during the day, usually after eating. So far (with a slight change in my diet as well) Ive lost 3 pounds in just over a week. My question is for those of you who've been on it, is this normal for the medication? I don't want to call my Dr if its normal to loose some weight so quickly. I am also on a thyroid medication to for slightly elevated thyroid that my Dr put me on just to help with conception. Any advice girls?