I have it and it is difficult to control. I have to eat every two to three hours, which makes it hard to diet but I have been losing weight very well this year. I have to eat lots of carbs, sugars don't keep that "icky" feeling at bay very long. I have to eat some pasta, rice, or breads to have any kind of energy. Luckily I have a fast metabolism, so I can eat lots of carbs and lose weight. I avoid sugar and sweets as completely as possible. From what I have been told, you have this for life, like diabetes. Mine is controlled through diet, but if I get busy at work and don't get a chance to eat, I definitely don't feel good.