I've always enjoyed sugar, but there used to be a limit.. Over the last few years however, the amount of sugar I consume has sky rocketed. At first, I didn't notice, I had no symptoms and even now I'm more on the skinny side than fat. However recently, I've developed a whole heap of symptoms, headaches, dizzyness, difficulty concentrating because I feel hyper, fast heart rate and palpatations. Last time I went to the doctor he actually referred me to a cardiologist because of my fast heart rate but I haven't gone yet.. It's occurred to me a few times that sugar might be my problem but, I don't know how to control it. I'm 20 years old, about 168 cm tall and weigh about 56kg, no previous health problems. I eat a lot of good food, like the recommended amounts of fruit and vegetables but then I just can't not eat sugar. If I try not to, I shake and feel like I'm going to pass out, I have trouble walking even. What affect does excess sugar have on your heart? And also while I'm at it, what are the other effects of excess sugar?