> It's quite a weird effect; if I eat in the morning, I'll be hungry throughout the day, but if I skip breakfast (or even lunch), I'll only get hungry towards the evening.

I think that's actually a pretty normal effect, though perhaps not usually as pronounced as "only get hungry towards the evening". You don't normally get hungry while asleep, so I think one of breakfast's purposes is to kick-start the metabolism, with the side-effect of getting hungry afterwards. Especially if you're on a diet and are sticking to small breakfasts, making that meal counterproductive.