For some children, anxiety affects their behaviour and thoughts on a daily basis, interfering with their school, home and social life. anxiety causes distress or interference that is much greater than anxiety experienced by other children of the same age, it may be called an anxiety disorder.
Some of the signs of anxiety disorders in children are finding it hard to concentrate, not sleeping, or waking in the night with bad dreams,not eating properly, quickly getting angry or irritable, and being out of control during outbursts, constantly worrying or having negative thoughts, feeling tense and fidgety, or using the toilet often, always crying, being clingy all the time (when other children are ok), complaining of tummy aches and feeling unwell
Related Journals of Childhood Anxiety
Depression and Anxiety, Psychological Abnormalities in Children, Child and Adolescent Behaviour, Journal of the American Academy of Child and Adolescent Psychiatry, Advances in child development and behavior, Journal of Anxiety Disorders, Child and Adolescent Psychiatry and Mental Health