You may notice that some of the symptoms of ADHD apply to you or your loved one, but not others. This may be explained by the fact that there are several types of ADHD:  Inattentive: People with this type have a hard time organizing and finishing tasks, and they often become easily distracted. They may procrastinate or give up prematurely on tasks, and some have difficulty following instructions or conversations. Hyperactive-impulsive: People with this type usually fidget a lot and have a hard time sitting still. They may feel restless and struggle with impulsivity, and they may speak at inappropriate times. This can lead to problems at work and in relationships. Combined: Some people have symptoms of both the inattentive and hyperactive-impulsive types.