Well, I dont really remember feeling any different when i was on the Metformin (Glucophage) either. I think i just didnt lose as much hair, and wasnt really as tired, but thats it. I just started back on it a few weeks ago, and this time around i am less tired, but OMG i have some bad bowel problems LOL...I get nausious VERY easily and go potty alot...and have gas too...Not trying to scare you

Its definatly different for everyone, and i would say its different at different times too, as i've experienced. But, i would definatly give it a try. The outcome definatly outweighs the side effects. It helped me get PG with my DD on the first round of clomid. (the two help each other out i guess) So, give it a try and good luck!