Hello Rita -
First I would take a look at what you are already eating so that you know what may be triggering your migraines - which you are doing! There are some foods more than others that affect people. These include chocolate, citrus fruits, dairy, MSG, aged cheese, alcohol (especially red wine) and sugar substitutes (aspartame). Each person if unique so I wouldn't rule out the possibility that these two may be 'triggers' for you. Try to eliminate them from your Blast - using other greens and low sugar fruits. Also, maybe try them outside of NutriBlasts to see if these are in fact the culprits.
Now on to what you can include in your NutriBlast that may help fight your migraine...fresh ginger and foods high in magnesium (pumpkin seeds, spinach, swiss chard, sesame seeds, sunflower seeds, cashews). Some people find help with the herb feverfew: http://nccam.nih.gov/health/feverfew which can be found at a health food store. But like any herb or new diet, check w/ your Dr. before using. Keep me posted!!