Your liver may be producing sugar. What time do you go to bed? Have a small protein snack before bed to see if that helps.
I had that problem and still do sometimes. You also may be having the dawn phenomenon. Have you checked it about an hour AFTER you are up?
Blessings
Tink
You betcha! It raises mine. I might as well eat real sugar!
Blessings
Tink
Check your messages!
Tinkerbell