I have been a type 1 diabetic for the past 9 years and after having some hypo's in my early days i was refused my license for 1 year until confirmed ' stable'. Then re-issued a 3 year license, no problems so far apart from not being contacted regarding upcoming renewals.
With no offense intended I think many of you are very precise with your readings and many people being too strict on them selves. I have been told by many specialists and teachers on diabetes to eat like a normal person if you want too and what you want in life; just monitor your levels and look after yourself. (obviously not too much sugar or excessive carbs) .
Also, keep your sugars below 10 - above this is fine now and again just not for extensive periods of time.
I would never drive below 9 at the least, especially if its a longish journey i would never take the risk in anyway. Doing any sort of exercise, walking, running or gym work i would always stay above 10, if your sat down all day at the computer and using no energy than yes below 10 would be fine.
I know we are all different and kind regards.
Justin