I'm borderline hypoglycemic, my aunt is as well. We are the only two in the family who have anything like it, although my Mom had gestational diabetes when she was pregnant with my brother. It's kind of a bummer, because my sugar levels get low quickly, so I always have to bring some sort of food and/or soda anyplace I go, and eat meals frequently.
If my sugar levels get too low, I become very drowsy and foggy-headed, my limbs get tingly and weak, and I feel faint. I hate the feeling, so I eat all the time.