High - 35+ As a teenager I was an idiot and went 3-4 days without injecting
Low - 0.6 Had issues when they changed my insulin, suffered numerous fits throughout the night. When the 0.6 happened i don't think I'd had a seizure but who knows, I woke up and didn't feel too "out of it" tbh but luckily the 1st thing I did was do my blood. When i saw it I flew down the stairs, went to the sugar pot and got it down my neck. It probably wouldn't have been long before I blacked out but all was good.
A lot of times through that period my hypo sensitivity was almost zero. I collapsed in the middle of town without noticing a thing physically until I was falling into people like a drunk but the signals in my brain weren't really getting from a to b at that point and next thing I know a police officer was helping me. Had a few close calls over my 25 years but that was a 1st for me collapsing while I was wide awake.