You just broke up with your significant other and you feel sad, sick, angry and your zest for life is gone. Instead of getting your work done you find your mind wandering to happy moments with your ex. Instead of sleeping you feel restless. Instead of eating nutritious meals you aren't hungry at all or feel a sudden urge to eat an entire container of ice-cream. Instead of going out with your friends you stay home looking at your ex's social media, watching bad tv, or shopping online.