Some suffering from Internet addiction may create on-line personas or profiles where they are able to alter their identities and pretend to be someone other than himself or herself. Those at highest risk for creation of a secret life are those who suffer from low-self esteem feelings of inadequacy, and fear of disapproval. Such negative self-concepts lead to clinical problems of depression and anxiety.
Many persons who attempt to quit their Internet use experience withdrawal including: anger, depression, relief, mood swings, anxiety, fear, irritability, sadness, loneliness, boredom, restlessness, procrastination, and upset stomach. Being addicted to the Internet can also cause physical discomfort or medical problems such as: Carpal Tunnel Syndrome, dry eyes, backaches, severe headaches, eating irregularities, (such as skipping meals), failure to attend to personal hygiene, and sleep disturbance.