So, the last time this happened we ended up in the endos office. It's now our third episode and it usually lasts 3-5 days. My son will have an unexplained spikey sticky high around midnight that takes multiple corrections. I'm calling this the "insulin resistant period." He comes down to 100 or less by 7 am. Then, it is followed by 12-18 hours of what I'm now calling "slow GI absorption/diabetes free time." Dinner last night was 3/4 cup cooked pasta al dente with 1/2 cup lean 93% ground beef on side with a light Greek yogurt smoothie of blueberries, avocado, milk, splash of juice. No spikes for 4 hours post meal (dinner at 6 pm). Then giant midnight spike into the 300s that takes 2-3 corrections (one every hour) to budge below 200. Breakfast with 15 min prebolus and 80 carbs of quick oatmeal with brown sugar/cinnamon and he doesn't come above 97. Usually he spikes to 150. Just for a test, I let him have a choc covered Quaker granola bar (23 carbs) and he only goes to 115 from 97. This same pattern occurs every 2 months. I find it quite interesting but I cannot find any answers. Absolutely no signs of illness or abnormalities. Tests during last episode reveal no thyroid, celiac, or other issues. ???????????? Edit: the giant midnight spike will happen even if he has a salad and grilled chic dinner. In other words we have ruled out a delayed fat spike.