Bullied children and teens can exhibit many symptoms, including physical, emotional and behavioral side effects. Even if they haven't yet spoken of any experience with cyberbullying, be sure to talk to them if they're showing any of the following signs, as they may be frightened to bring up the bullying at first: Academic struggles that are out of character Anger Anxiety Depression Exclusion from peers Fear Feelings of isolation Headaches Hopelessness/powerlessness Low self-esteem New behavioral issues Sadness Self-harm Stomach issues Substance abuse (seen more in teenagers) Suicidal ideation or behaviors