I have a pretty regular diet, in which I eat lunch at 12.30 and then have an afternoon snack of peanuts at 3.15. Today I was feeling a bit wobbly before my snack so I did a quick blood test and I was 4.7, which is pretty normal for me. I was under the impression that 4.7 is within the normal range - not too low, not too high - so any idea why I might be feeling wobbly at 4.7? Eating my peanuts now and they're definitely helping me feel more normal.