You have good control as well. I am always about 5.8 - 6ish. I only start feeling dodgy when it gets lower than that. I don't know about you, but after a while you just know what it is. For example, as I sit here writing this I am fairly sure it will be about 5 to 7, because I had some toast the back of nine and haven't had my night time insulin yet. My Dad is also diabetic, but his control is bad and he struggles to keep it under control.
I have only had one bad incident with a hypo while at work once. I had my insulin before work on the farm and ate a smaller than usual breakfast. It was a very busy day and I was lifting a lot of heavy loads of hay. The next thing I know I was in the Doctors office and looking into the mirror and wondering why the hell I was there and not at work

. My Boss later said I was talking a load of pish and then sudenly got up and left. I luckily somehow knew what was happening and managed to find my way to the Doctor's office. People must have thought I was wacked out on drugs or something

. I just couldn't figure out what was happening, it is like being drunk in some ways.