Article continues below advertisementDavid Bowie's daughter, Lexi Jones, looked back on her dark history of mental health struggles that drove her apart from her father - even during his final days.In a February 18 Instagram post, the 25-year-old reflected on being sent away to a therapy treatment center at age 14, even though the musician was suffering from cancer.Jones faced bulimia, self-harm and substance abuse as a teenager, issues that were further exacerbated by her father's medical battle.