Why?

That's your liver, delivering glucose to your system to get you going. If it persists, try eating a small protein snack when you wake up, or have breakfast earlier. either should stop the glucose dump, as your system realises food is available, and your not starving.

flonvic said:

This morning fbg 6.7. 2 hrs after,pre breakfast it was 10.only had 1 cup of tea before.Had breakfast now its 8.3.(2hrs after).

Click to expand...

I have discovered chewing a couple of cloves throughout the day and having clove and ginger tea before bed brings my glucose levels right down.
The stuff I've read about cloves comes with a warning about keeping your eye out for hypos it's that effective!
Not the best chewing gum I ever had but I'm well used to it by now.

Another way of looking at it is, it's your liver is misreading the signals of your body's blood glucose system, due to the insulin resistance (as well as other malfunctions), and wrongly 'seeing' your blood glucose as needing a boost to get you up from sleep, when in fact, as you know - you have probably more than enough glucose whipping around your body already, in fact - already too much, or even, way too much. It's a significant part of the diabetes type 2 dysregulation. And yes - major major pain in the proverbial.