What is it that you think sowhatquestion means by "sugar rush"? My guess is you think he means hyperactivity.
What is the difference between a diabetic glycemic excursion (what you said) and a postprandial glycemic excursion (what I linked)?
What is the difference between a diabetic glycemic excursion (what you said) and a postprandial glycemic excursion (what I linked)?
There's no difference -- postprandial excursions are a diabetic phenomenon, and have nothing to do with what non-diabetic individuals think of as the effect of sugar and fiber on their health and mood.