Absolute Rubbish! You are very correct. How will you know if you have high sugar or not without testing? I have had pre-diabetic sugar levels on and off for a few years and I have kept it in check only because of regular testing while on drugs. So many times my drugs dosage has been reduced by my GP because my sugar level was back to normal or even a little below it sometimes (good for me actually). So, continue testing and keep health!