Adults have not been receiving proper treatment for ADHD due to its association with being a childhood illness. These adults struggle at work, home, and with their social interactions. Some described symptoms of inattention, easily distracted, and trouble paying attention; staying organized, while others had trouble with the hyperactivity and impulsivity that mark the condition. For example, restlessness, figety, and an inability to slow down and would speak or act without thinking things through.
The roots of ADHD are in childhood, but the problems these adults have made it clear that it's a neuro-psychiatric disorder that often continues into adulthood. Establishing symptoms and taking a history over the course of an individual's life is the cornerstone of clinical medicine. Unfortunately, for ADHD, the diagnosic blood work and imaging tests remain research tools. Stop, look, and listen to note your inattentive symptoms and share your stories with someone you trust, to work towards a better diagnosis ("Scattered Minds" Hope and Help for Adults with Attention Deficit Hyperactivity Disorder (ADHD), Leonard Adler, M.D. with Mari Florence (2006)).