Hungry? Which type of hungry?

I'm hungry! A phrase I here regularly in our household. What 8 going on 9 year old boy is not perpetually hungry.
 But then we have a twist. Type 1 Diabetes.
 Lex doesn't often feel when he is low, but after 4+ years of watching him grow up with this disease, I have got pretty good at spotting when his blood sugar is lower than we would like!
Usually one's blood sugar hovers gently in the range of 4-6 mmol/l -in people who do not have Diabetes. Lex has been running around playing football with a blood sugar of 2.2 and quote ' feels fine!!'  Getting him to recognise this is slow progress. When asked how he feels when low he will say he is hungry - not much help really. So now we have developed a system of him categorising his hunger in an attempt to teach him to recognise low blood sugars.
So we have 'hungry hungry' - usually around meal times - what I would call your normal hunger.
Next - 'bored hungry' usually announced whilst sitting in the car on a long journey, waiting for the bus and the like - in other words I have nothing to do so eating seems like a good idea.
Finally we have ' low hungry' - that hunger feeling he gets when his blood sugar is on its way down or is already in his boots - time for food NOW .
Not the most scientific system but it slowly seems to be working.
Having worked on lows, we have of course been battling the highs from hell for the last 3 days - no rhyme or reason of course, maybe growing, a bug, the weather or just because Diabetes does just that. Thank god for the pump, correction bolusing with little fuss, insulin on board and my new best friend temp basals!
But summer is here and that means swimming in the lake, ice cream, bikes rides, playing out late with your mates( remember here it is only vaguely dark at the moment between 2am and 4am so day light abounds!) watching football and athletics and planning a trip to the Olympics.
 Life is good!!