Hi. If your BMI is around normal then I would stay with the lower weight. Don't try to be like the average overweight people around you. What were you diagnosed as? A diabetic who suddenly loses weight before diagnosis is possibly a Late onset T1 (LADA) and not T2. Do bear this in mind as you may need to go onto medication quite quickly. Don't be tempted to eat lots of carbs as they will increase your blood sugar. If you want to eat more then increase protein and fats.