Hiya, just a quick one on this subject. I was using metformin for control of PCOS for months, but then I came off of it when I fell pregnant with my twins. My friend was on it too and fell pregnant shortly after 6 moinths of being on it. I would warn anyone who is taking it that it definately does something to your fertility!!!!
Anyway, I tried to go back on it again at the begining of this year, but it made me feel terrible. Tired and washed out all the time, headachy, nauseous....awful in general to the point where I simply couldn't go on with the treatment anymore.
I didn't lose weigh whilst on it first or second time round, but at least the first time it did help with the periods and PCOS.

Anyway, just thought i would put in my 10cs worth. I really wish I could take it again, but I am really worried I'll get all of those symptoms back.

Anyone else suffered with these things whilst taking it?