Understood honeybun - thanks for pointing out - that's why I said "apparent hypoglycaemia" because I knew it wasn't actually dangerously low, but is most certainly more than normal hunger or even ravenous hunger - that's what is different about it.
These symptoms - the sweating, shaking and irritability can be very alarming to anyone who experiences them for the first time and doesn't know what they are - and could be confused with something serious or a panic attack, which is why I mentioned it, rather than suggesting someone might have something seriously wrong.
I think the apparent hypoglycaemia symptoms that occur pre-menstrually and in peri-meno are caused by a sudden lowering of blood sugar and the body's regulation mechanisms are delayed for some reason connected with our hormones - but I haven't read up in detail on this - and I think it's quite complicated!
In my case I measured them as I mentioned and they always were on the lowest end of normal - but dramatic and unpleasant all the same, although of course not dangerous.
Form what I've read, some medications and conditions can also cause actual hypoglycaemia, as well as diabetes.
Hurdity x