Hi..I'm 44 yrs old, 5'5", 150 lbs. Recently lost 25 lbs douig lchf diet. I was told 6 months ago I was pre diabetic with an ac1 of 6.4... 3 months later 6.1 after loosing 16 lbs..the next 3 month exam showed ac1 of 8.2!! I was shocked. I eat no more than 70 carbs a day, 1300 cal per day diet. Now I am on metformin 500 mg 2x day. My morning bg is anywhere from 155 to 250 no matter what I eat, girls it's dawn phenomenon . I've only been on met about 2 weeks now n sugars have gone down a little but not enough. How long does it usually take to effect #s? This is all diagnosis from primary..I have endo appt in 3 more weeks..they seem to b very busy. I range 100-175 rest of day eating again low carb but about 5 times a day... I also exercise every day 20-30 minutes on treadmill about 6 days week..what am I doing wrong???