There are three types of ADHD:
Inattentive (which used to be called ADD), hyperactive-impulsive, and combined.
Inattentive : The symptoms may include daydreaming, disorganization, and careless mistakes.
Hyperactive-Impulsive : The symptoms may include fidgeting, nonstop talking, and impatience.
Symptoms of Boredom
In conventional usage, boredom is an emotional or psychological state experienced when an individual is left without anything in particular to do, is not interested in his or her surroundings, or feels that a day or period is dull or tedious.
… boredom has to do fundamentally with an experience of time and problems of meaning.
This can result from leisure and a lack of aesthetic interests.
Sources:
http://www.webmd.com