5. Restlessness
People with ADHD often feel the impulse to move all around the place. Again, just like any other hyperactivity symptom, this one is far more evident in children and young teenagers.
In the case of adults, they have more like a subjective feeling of restlessness. Children tend to spend their abundant energy jumping, running, and climbing up and down objects.
This is one of the symptoms that becomes more evident when they are in a situation that requires being still or silent, or when climbing or jumping constitutes a transgression of the norms.