Headache font a free sans serif font that is meant to be mad, crazy, attention seeker, rebel, distracted, open, crazy again and many of the current world moods. With a slightly futuristic touch, this font is meant for headlines, logo design and branding, marketing, advertising and more! The font is fully uppercase, but to make up for that, some of the letters are available in two styles. You can activate each by writing lowercase or uppercase letters.