Hello,
I really appreciate your concern for your health and its really very good that you are regularly checking your sugar. Coming back to your question, your
HbA1c of 6.6 is normal and it should be below 7, when it goes beyond 7,then its alarming and you should start diabetic treatment.
Your other blood sugar levels including
GTT are also normal, so no need to worry about that. You should also check your
lipid profile every 6 monthly,as your age is 45.
You should also do some kind of exercise regularly mainly brisk walking to check your weight, because weight gain mainly belly weight can lead to
diabetes. Also take proper healthy diet, avoid oily foods, take high fiber diet and avoid excess sweet food.
Hope this much of information will be helpful to you.