TBI or CTE: What the Hell Is Wrong with Me? – A Fighter’s Journey from Head Trauma to Hope “A gut-wrenchingly honest look at the ultimate nightmare—the betrayal of one’s own body.” – Sam Sheridan , author of A Fighter’s Heart For years, former fighter and Ivy League football player Mark Tullius ignored the warning signs. The headaches, memory lapses, and mood swings were just part of the game—until a brain scan changed everything. This raw and revealing traumatic brain injury memoir blends personal storytelling, medical research, and mental-health insights. What began as a mission to help fellow fighters and athletes understand CTE and TBI became a deeply personal quest for recovery, resilience, and meaning. Forced to confront the hidden damage from years of contact sports and combat, Mark refused to surrender. Instead, he turned his pain into a relentless pursuit of health, happiness, and brain-body healing through science, therapy, and self-discovery. Whether you’re an athlete, veteran, caregiver, or survivor , this eye-opening book offers hope, perspective, and practical tools for rebuilding your life after trauma. “A roadmap of experience unparalleled in health literature—thought-provoking and full of hope.” – Midwest Book Review "It provides a road map of experience that is unparalleled in health literature, offering both thought-provoking assessments and hope to all ages who either participate in sports or are recovering from head injury. It should be in any health collection, as well as in libraries strong in memoirs containing deep psychological self-assessments." - D. Donovan, Senior Reviewer, Midwest Book Review "A gut-wrenchingly honest look at the ultimate nightmare— the betrayal of one's own body. Mark's confrontations with the repercussions of a combat and contact-sport-driven youth lead to an optimistic and information-laden investigation into the emerging treatments for CTE and TBI and related injuries." Sam Sheridan, author of A Fighter's Heart, The Fighter's Mind and The Disaster Diaries "Mark has made an extremely thorough analysis of causes, manifestations, and treatment of TBI. His passionate approach has inspired me to reexamine my own knowledge base on this topic, both as a mixed martial arts physician and as a combat veteran. This book is a must read for anyone who seeks to understand TBI and CTE on a deeper level" - Mike Simpson, M.D., Major, US Army (Retired) author of Honed: Finding Your Edge as a Man Over 40 It's amazing to think I dind't want to write this book, that I thought I didn't need to. I thought I was fine and was reassured by loved ones that I didn't have any brain issues. Fortunately, I had friends who steered me in the righ direction and showed me there was hope. I'm hoping this book will help others take an honest look at themselves, find ways to improve their brain health, develop strong coping techniques for themselves and their family, and find some of the happiness and relief I received from this experience. Wishing you the best.