After eating rather healthily for about a month or so, yesterday I lost control and had a bit of a binge on ice-cream, chocolate, sugary cereal and biscuits only a few hours to bedtime. I drank about 2 bottles of water afterwards and did an hour of exercise and this morning my blood sugar came back as 5.4 mmol. (I am not diabetic, but around a month or so ago my blood sugar was just out of the pre-diabetes stage at 5.3) So this morning is (to my knowledge) the highest I've ever had it.
Do you suppose it's because I ate quite bad just a few hours before bedtime? If I eat healthily today with lots of water and my regular exercise will it be lower tomorrow morning?
(for the record, I am only 18 and not obese. Just looking for a little reassurance)