Just wondering how old you had to be to get diabetes? Can you be young or must you be old/middle aged? Sorry about the couple of diabetes questions I asks. I m just worried. How young? I weight 60kg and I am 14 but 15 this year. I think I also have a family history. Oh ya, how can you tell if you have diabetes? I eat quite alot of Chocolates Sweets. Please answer my other questions.