Hi - am newly diagnosed and been on metformin for just over 2 weeks (slow release now as the first ones really upset my tummy). My question is can they make you feel cold? I'm normally always in t-shirts as I have been in a medically induced menopause for 15 years for endometriosis so am ALWAYS hot. However, I am really cold at the minute and keep waking up shivering. Is this the drugs? I think I've had diabetes for a good while before diagnosis (without symptoms) so don't think its that that's made the difference.