Headaches are probably one of the best and most difficult excuses for taking time off work! The good thing is that almost everyone has used this excuse when they were students. The hard part is that there are always people who think that a headache is just a minor problem and will be fine later. But is a headache really nothing? The answer is no! There is a kind of headache, serious when you can not see the light, can not hear the sound! It’s a migraine that makes you feel as if you’re dying, and that’s all it is!