ADD (aka Inattentive ADHD) can cause just as many problems as hyperactive ADHD. Children with inattentive ADHD are often quiet and withdrawn. They may be seen as underachievers and daydreamers. Many have trouble with organization and time management. They may take longer to process information.
One TikToker with more than 70,000 followers went viral with the unfounded claim that the phenomenon also called an "earworm" or "brainworm" is a symptom of ADHD, or attention-deficit/hyperactivity disorder.