driving with insulin

Hi all, I was diagnosed with type 1 in December which subsequently I lost my hgv entitlement. I have since re applied for my licence.... this is where my confusion starts... they refused it because I didn’t submit any medical evidence to support my new application. The hospital told me that I...

I fell asleep before I gave myself an insulin injection last night so my fasting glucose this morning was 10.6. I have taken the insulin 3 hours ago now but am wondering how high is too high to drive? I do not get lows below 4.0 in part because I fear them and eat enough to keep my blood glucose...