So, using metformin and glyburide, along with diet and exercise, I got my A1C from 8.9 in February to 5.4 now. My doctor instructed me to stop taking Glyburide. So, my glucose readings have gone up since then, as I expected, but I'm wondering how much is too much? My fasting levels have been 116 and 125 since I stopped taking it. Does anyone have any experience with this?