Intermittent fasting diabetic

Under the supervision of a coach I've practiced fasting for some time. As a diabetic I find that my blood sugars are more stable and I use way less insulin. My doctor was concerned when I started but liked that I had a health coach. One downside is that I have to track my blood sugar constantly. I do have lows which sometimes require me to end my fast early. Are there any other diabetics practicing intermittent fasting? What challenges have you faced? How does your doctor feel about it?