The caffeine will help boost bg somewhat

Once more thanks for your advice. I will try to change my breakfast and see if that helps to cope much better until my break without having to run to the cafeteria to have a coffee with sugar, a big mistake I made, I know, but I felt so weak and shaky (and scared too that it could go even lower....). It is the same at night, sometimes I feel scared that it could go down very much during my sleep and not be aware of it. So I always have a glass of milk just before I go to sleep. Maybe this is wrong too? Or somehow we will wake up if we do not feel well? And is it because my body has been used to high glucose levels that I do not feel bad if it goes up a bit over the limit but feel bad when it goes down?.

Running for coffee with sugar may not be so wrong when you go low, but it usually needs follow up. The caffeine will help boost bg somewhat, since it stimulates glycogen release and others, and the sugr (not very much of it, of course) helps too. Once that sunk in, perhaps 10 to 20 minutes later it may be best to have something more substantial, particularly protein, if the next meal is more than 1/2 hour or so away. You wake up because something unusual is affecting your system. If low your counter-regulatory hormones such as adrenilyn are released, and the affects tend to wake up most people. If you go high then other warning symptoms are started that may also wake you up.

The real problem for diabetics is if you DON'T get these symptoms, and therefore don't wake up. This is known as HypoGlycemia Unawareness (or HGU) and is very dangerous. At this poin you shouldn't worry about that if it hasn't been that way for you till now. HGU MAY be there from the start if that's how your system is, for whatever reason, but it usually appears after many years of diabetes, probably aide by very poor long-term control. Of course it's always a good idea to have someone around that knows what to do if you have problems. What really scares me is a diabetic with HGU who lives alone. Lost a good friend to a heart attack after he'd survived poor control for 33 years or so. Whether he had a hypo at the same time will never be known, but I wouldn't be surprised.