Yes, or something like it. Reactive hypoglycemia. My blood sugar will rise then drop quickly after eating, and will also drop quickly after too much physical activity. A few years ago it was to the point where I would have to nap after a shower because it was too physically demanding...I would get light-headed, shaky, confused, have slurred speech and would be so hungry it felt like I hadn't eaten in days - just from a friggin shower. DR said no more sugar, simple carbs, etc., and I had to eat small about every 2 hrs with lots of fat and protein to keep myself feeling full. A year and a half of a VERY strict diet (couldn't eat most fruits or sweet veggies, no wheat, potatoes, rice, no sugar in any form, no fruit juice) and then several years of slowly allowing myself bites of simple carbs here n there and whatever it was that was broken has now mostly been fixed but I still have to be careful. Relying on simple carbs to get me through a ride could potentially put me back to where I was before. I wouldn't touch a sports drink or gel with a 10 foot pole. This girl needs fat and protein with her sugar!