Stop saying the word "stress" so much; it does not help you! If you keep telling yourself you are very hungry, before long you will be famished and the same is true for feeling stressed. Thinking about or saying the word causes you to think about it, so try to think of other things and not dwell on the stresses in your life.
Eat a light snack if you're feeling stressed. Foods rich in carbohydrates produce serotonin in your brain, which makes you feel happier. While you may want to watch your calorie counts, it may be useful to know that whole grain carbs, like cereal and wheat breads, can offer a temporary stess remedy to get you over a stressful hump in your day.