Emotional and behavioral indications
Emotional and behavioral characteristics associated with anorexia include:

• Refusal to eat,
• Denial of hunger,
• Excessive exercise/purging/vomiting
• Flat mood, or lack of emotion,
• Difficulty concentrating,
• Constant preoccupation with food.

 Red flags to watch for
Signs and symptoms of anorexia may not always be readily apparent. People with anorexia often go to great lengths to disguise their thinness or other physical problems, or their disordered eating behavior.
If you're concerned about a loved one, watch for these red flags:

• Skipping meals
• Making excuses for not eating
• Eating only a few certain "safe" foods, usually those low in fat and calories
• Adopting rigid meal or eating rituals, such as cutting food into tiny pieces or spitting food out after chewing
• consuming a lot of water or diet soft drinks (to make vomiting easier if they are going to purge)
• Weighing food
• Cooking elaborate meals for others but refusing to eat them themselves
• Repeated weighing of themselves
• Frequent checking in the mirror for perceived flaws
• Wearing baggy or layered clothing
• Complaining about being fat