In case she's eating aspartame, Nutrasweet, etc. - these artificial sweeteners are toxic and might be helping to cause the headaches. These things are found in diet sodas, candy, foods sometimes, gum, etc. These things have been pushed into American foods heavily as a replacement for sugar, but they are harmful to consume. A little sugar is not gonna kill you, a lot can cause cavities, birth deformities, I think obesity, tiredness, etc (in case I forgot some). High fructose corn syrup (I think in larger amounts) can cause obesity, and other things too. As I figure you know: many companies don't give a shit about you as long as they get you to consume their products.