If your insulin was a lot higher than normal
but your blood glucose
was in the normal
range, it means that your pancreas is having to produce large amounts of insulin to keep your blood sugar down. So, yes, your are insulin resistant, even though you are technically not a diabetic.
Insulin resistance suggests that you are developing Type 2 diabetes, even though your blood sugar levels are within the normal range. The experts are not sure what causes insuli reistance.