Hi.. If you have a strong family history of diabetes, you are more prone to develop diabetes.. However you may need medical treatment if only the sugars go high.. And as your sugars have never been high you may not need medications now.. You can get a glucose tolerance test which will suggest if you have symptoms of prediabetes and in such case a complete dietary modifications similar to any diabetic have to be followed.. It is also equally important to keep your weigh under normal limits to prevent diabetes from setting up..