When Iraq combat veteran Daniel Paul Jabs petitioned the Illinois Department of Public Health in February 2015 to add post-traumatic stress disorder to the approved condition list for medical cannabis, he submitted his military records, five medical journal articles and his diagnosis of the “panic attacks, flashbacks, nightmares, intrusive memories, hyper-sensitivity to light and noise, over reactive startle responses” and other symptoms that make up his particular form of PTSD.