https://www.openlearning.com/u..../holmbergdupont-so3r
Severe ADHD Symptoms People suffering from ADHD can hyper-focus on things that they find interesting or fun. They also may have a low frustration tolerance and mood swings. Doctors will look at the person's background and family history, especially when they are young. They will look over school report cards and talk to parents. They will assess symptoms for both inattention and hyperactivity-impulsivity, as well as a lack of motivation. 1. Difficulty Focusing