Hi,
Getting blurry vision is one of the signs I look for (no pun intended......) when I am starting to get very low. I started getting low today at work, as a teacher I'm usually on my feet most of the time and so spot hypos from the more conventional signs,(are there more conventional signs?). Today I was sitting down marking, my vision started to blur and I immediately checked my sugar, was a little low 70 (sorry I use the other system. can't do the conversions.) for me. I managed to catch it before it went any lower and carried on with my work.