I doubt that you had diabetes
or not,I would say you were pro diabetes,
To confirm the diabetes blood sugar only is not enough, at that time weather you had GTT
or Hb1C test or not.
Any how now you do not take tablet and strict diet control i.e.no sugar,fat or carbohydrate
After one month go for blood,fasting and post lunch,if it is normal,do not worry about diabetes.
ok and bye.