hungover feeling in the morning (not after drinking)

I don't know whether or not anyone has any knowledge of this but probably 50% of nights i tend to wake following approx 1.5 hrs of sleep, suddenly feeling thirsty and needing the toilet. Following this i'll sleep for approx 2 hrs then wake again feeling thirsty. In the morning I wake feeling hungover, which then lasts for most of the day. I've had a BG continuous monitor fitted for the past week to monitor my BG readings at night to look for any dips etc. I haven't been able to record any low BGs myself at night and during my initial 1.5 hrs in bed the BG readings seem to usually stay at around 7-8. It does feel as though it's that liver dump action that gets discussed from time to time and usually this reading of 7-8 is followed by an increase in BG to maybe 10. I have had the same feeling at other times if i've over compensated for a hi-BG level at night with too much insulin.

Can you post some diary results using this site's diary feature?
You may be looking at a dawn phenomenon issue, but it's difficult to tell for sure from what you've described.
Take care.