If you are a T1 that have been on tight intense therapy for some years, and typically in average run the bg in fairly low numbers, then your body gets used to that. One of the side effects is unfortunately that 'normal' counter reactions do not come until you are then further low as well. Does this match your situation? Have at times been suggested by my diabetologist to raise my average bg, to avoid 'being able to' go so low before getting the hypo signal/feeling.
Warning signals on going hypo also tend to change over the years, so challenge is then to start to know and take notice when those changes appear. Especially the slow sneaking ones are the worst, e.g. if you sit still and read/relax, and then for whatever reason you slowly but surely start dropping off. That is typically where you get least warning/symptoms, and you can get quite low before the body itself also feel the need to counter-react with stress hormone releases etc. Good thing is though with the slow sneaking ones, its normally not so bad for the body, as the drop is not rapid. Unpleasant never the less.
