The liver automatically releases glucose if the glucose levels in your blood are getting too low. If you drink too much the livers first job is to process all the alcohol first, so if you haven't eaten enough and your blood sugars drop your liver does not release the glucose to help you naturally recover.
It is strange that it happened 10 days after stopping though.
I am diabetic and drinking episodes and taking insulin left me with serious hypo's at times (the day after that is).