So, since TB is full of PhD's in everything, I thought I'd ask here. For reference, I am 17. I'm roughly 5'6" and 110 lbs. I eat an inordinate amount but can't keep weight on. I have a somewhat active lifestyle but no regular exercise. My mom has been diagnosed with Diabetes, Lupus, Crohn's, Fibromyalgia, PCOS, and other unfortunate things (this will be important in a second). Anyways, I have two things I'm curious to see the take on: poor circulation and diabetes-like symptoms. My fingers and feet are always cold. I live in sunny Florida, but even in my house I have to wear socks and shoes and they're still cold and they can hurt. It really bothered me today as I was playing my new guitar, running scales, and my fingers were just cold and uncomfortable... I couldn't understand how they could be so cold while I was using them so much. This is a symptom of both diabetes and lupus, but I have neither of these. However, I also exhibit diabetes like symptoms regarding food. I have an incredibly high metabolism, over 2,000 calories a day (sometimes closer to 3). If I don't eat within an hour or so of feeling hungry, a migraine will sometimes come on. Also, my energy level decreases, I become weak and dissociative with the ground sometimes spinning, and I get jittery in my hands. My blood will fill with an odd warm-cold feeling similar to that of a fever. I am told this is what it feels like to have low blood sugar, and I always feel better after eating a certain amount. I also, on incredibly rare occasions, will go the other way. For instance, if I were to have, say, a cookie, a cupcake, and an icee one after the other, I would start to feel very bad. Sick to my stomach, very warm in my blood, lethargic, confused, irritable, etc. and this is supposedly what it feels like to have high blood sugar. Since I was little, if I ingest a lot of sugar (like sodas at a birthday party), a couple hours later my energy level will plummet and I get the shakes again. So, with the knowledge that you're all an anonymous group and can't diagnose me over the internet, go ahead and do exactly that!