Hi
I find eating fatty food at say 6pm (fish and chips, roast potatoes , Indians cooked in gee all unhealthy I know) tend to release their carbs 3am ish according to my freestyle 2 when the alarm sounds Or my poor wife wakes me, injecting 10 units ish for me reverses the upward trend
My freestyle libre has always worked off and on on my android phone (some times works better when I leave my phone upstairs you can hear the alarm from downstairs lol)