When you are hung over (shame on you for being so silly- why would you do such a thing to yourself? ;) there are many factors making you sick. Dehydration, toxins, and mineral deficiency can all make you feel dreadful. I have found that what works for most people is a healthy breakfast high in water, protein, potassium and quinine (because if effects the way that your body uses potassium). Be sure to get real tonic, it will be labeled ‘Contains Quinine.’ Quinine is a chemical derived from a plant of the same name and it is very bitter and sour; it is also available in pill form, but they aren’t cheap.