I feel faint

Yesterday I almost fainted--most likely from lack of food. I just haven't been eating enough. I had a smoothie (again) for breakfast and didn't end up eating anything until 3:30 that afternoon. At that point I got really light-headed and felt a little nauseous. So...today I tried eggs for breakfast; mashed potatoes, mac & cheese and yams for lunch; orange-veggie blend juice for snack; and salmon and bean salad for dinner. It still isn't quite the same amount of food I'm used to eating, but I think it may ward off dizzy spells!