The HBA1C is the general test for diabetes and is a measure of your blood sugar levels over the last 3 months or so.
If I remember correctly, below 42 is non diabetic, 42 to 47 is pre diabetic, and 48+ is diabetic. so at 49 you are just into the diabetic range, but plenty low enough that by watching what you eat you can control it yourself with out any real problem.
are you on low carb?
This gives a simple overview to how it works
For me, the more carbs we eat the more carbs we want. They don’t give up easy and it’s biochemical