Many Migraine sufferers do crave specific foods– especially sweets– right before a migraine; thus, the craving may be a sign that a migraine has already begun. Personal belief seems to play a part, too. In a small study at the university of pittsburg medical center that followed 63 women suffering from chronic headaches whether they ate chocolate or carob, the placebo.(of course, that’s not to say they were imagining the pain;some people do react to specific chemicals of  chocolate) Try Keeping a food dairy for a month to see whether food, stress, your period, or something else seems to trigger migraines. If choclate is trutly the culprit, you can try carob instead– thogh we won’t pretend it’s good as the real stuff.