I can feel it when my blood sugar levels are dropping quickly even if they have not reached hypoglycemic levels, and I have heard other diabetic
people say the same thing. If your glucose levels
rise above the norm a lot during
the day, your brain is reacting by asking your pancreas to secrete more insulin in order to lower those levels. When this happens, your glucose then drops either back to normal, or in some people, a little lower than normal.