Hi i have been newly diagnosed with type 2 diabetes and been given metformin. I have to take 1 tablet for 2 weeks and then increase it to 2 a day. I've been taking it for a week now and my vision is blurred i'm suffering dizzy spells and have a constant headache. Does anyone know if these side effects will ease off or just get worse because i'm concerned about my vision. The blurriness seems to be getting worse and worse each day. Any advise would be gratefully received.