I never used to eat brekky till I wa pregnant with my eldest, when I started getting dizzy spells @ around 10am. The doc said it was because I wasn't eating breakfast, and within a week of having something light to eat when I got up, the dizziness had stopped. It became habit, and now I have to eat first thing, whatever mad time I am getting up - otherwise I feel awful (Just sitting at the PC now scoffing Sultana Bran!!!)