Understanding Diabetes Risk: Symptoms, Prevention & Pre-Diabetes

Question
Is there a way of tell whether someone is consuming too many sugars and are risking becoming a diabetic? I am finding these days sugary things make me tired instead of energetic so I have become worried. Also my mother might be "pre-diabetic" and we tend to delute even her apple juice to keep her sugar down. Is there any condition that is especially at risk of become diabetic, but isn't yet there. I'd like to know what chances I take.

Answer
Gaining weight fairly quickly is a bad sign... also, checking the sugar 2 hours after a big meal is probably one of the earlier warning signs.... that even if it comes back down a few hours later, if elevated probably means you are on that pathway..... eating right no matter what the numbers are, makes a difference......