Hi, I face few problems like at times I suddenly start feeling uneasy in within few minutes of that I get completely pale, my body gets very cold, eyes distorts, and I vomit if I am standing, I get well as soon as I eat something sweet. and this happens to me anytime even at night while I am sleeping. Why does this happen what could be the possible reason. That experience is very scary and I feel as if I will die now, its literally that bad. Please help me?