Kat HarrisonKat Harrison is the award-winning author of Surgery on Sunday. She's a chronic illness advocate from Michigan and has shared her story with organizations like the American Migraine Foundation and the National Headache Foundation, as well as outlets lke Real Simple and The Mighty. Much like Mia (but a little bit older), she has lived with chronic migraine for over eighteen years. It's about as fun as it sounds. Read More Read Less