Thirty-nine years into her nursing career, Ritchie Johnson was making plans to retire soon. She dreamed of relaxing and traveling around the world.Until her youngest son, Chris, was diagnosed with a rare, aggressive, and fatal kidney cancer, known as Renal Medullary Carcinoma (RMC). Ritchie placed her nursing career on hold so that she could fully care for her son. She and Chris had many questions and few answers. They both faced untold challenges and difficulties, but, nonetheless, held on to their faith in order to overcome the obstacles.Mama, I'm tired is a reflection of the unconditional love that Ritchie demonstrated towards Chris while he endured this catastrophic illness that eventually led to his death. After losing her son 15 months after his diagnosis, she turned her tragic loss into something positive by becoming an advocate for RMC.About the Author: Ritchie W. Johnson was born and raised in Houston, Texas. She graduated from Texas Woman's University with a Bachelor of Science degree in nursing. She obtained her Masters in Business Administration from California College for Heath Services in Salt Lake City, Utah. She is a mother, registered nurse and advocate. In 2013, she founded the Chris "CJ" Johnson Foundation, Inc., a 501(c) 3 non-profit charity organization in honor of her son, Chris. She has experience in organizing fundraisers and raising awareness for Renal Medullary Carcinoma (RMC). The majority of her 46 years as a nurse was in Women's Health and Healthcare Leadership. As an advocate for RMC, she has been featured in the New York Times, Fort Bend Herald, Fort Bend/Southwest Star, has appeared on Fox 26 KRIV Houston, and in several neighborhood magazines. Ritchie resides in Sugar Land, Texas and because of her youngest son's death from RMC; she has dedicated her life to advocating for patients that have been diagnosed with RMC and offering support to them and their families.