Hello, Welcome to Healthcaremagic. Anxiety
can be present normally in various situations in human beings. It is very commonly seen in children too. But anxiety disorders are characterised by presence of anxiety even in normal circumstances and is not accountable to any cause. It is advisable for you to take your child to a psychiatrist
who would be in a better position to diagnose it and take further action in case of your child. Wish your child good health.