What are symptoms of attention deficit hyperactivity disorder (ADHD), inattentive type, in adults? · Often has trouble staying focused on tasks at. Read about symptoms of attention deficit hyperactivity disorder (ADHD), which are categorised into This form of ADHD is also known as attention deficit disorder (ADD). Although not always the case, some children may also have signs of other problems or In adults, the symptoms of ADHD are more difficult to define. Impulsiveness. Disorganization and problems prioritizing. Poor time management skills. Problems focusing on a task. Trouble multitasking. Excessive activity or restlessness. Poor planning. Low frustration tolerance. Symptoms of adult ADHD may include distractibility, impulsivity, disorganization, you show signs of attention deficit hyperactivity disorder (ADHD or ADD).