Yes, I have the exact same issue. It has never shown on the blood test, but I know it's there.
Every morning, before I even get out of bed, I use acupressure points for hypo-glycemia, and it calms down my system from whatever cortisol/adrenalin is overstimulating my system. It works really well. I do them during the day when I need to, as well. I've started to take small doses of chromium picolinate, too. The thing I need to do, asap, is to get off of simple carbs. I have many food allergies , so until I can eat more complex carbs, I'm eating some small amounts of simple carbs. I think that improving my diet will help a lot. I don't need the doctor's approval to do some taking care of me. :)