Galveston Daily News, November 22, 2006http://news.galvestondailynews.com/story.lasso?ewcd=10c90d0c736f0b89 By Sally Robinson and Keith Bly Many adults know what it’s like to have headaches, but children also get them. In fact, by the age of 5, 25 percent of children have had at least one headache, and by the age of 15, 75 percent have experienced a headache.