Which of these is a symptom of anorexia nervosa?

Hello, you did not give us the symptoms in your question, but below, I will list symptoms of Anorexia:

Whole body: dehydration, dizziness, fainting, fatigue, low blood pressure, low body temperature, osteoporosis, water-electrolyte imbalance, or feeling cold

Behavioral: binge eating, compulsive behavior, hyperactivity, impulsivity, or social isolation

Mood: anxiety, apprehension, or guilt

Weight: underweight, weight loss, or extreme weight loss and thinness

Developmental: delayed puberty or slow growth

Menstrual: irregular menstruation or absence of menstruation

Gastrointestinal: constipation or vomiting

Also common: brittle nails, bruising, depression, dieting, dry hair, dry skin, headache, sensitivity to cold, or slow heart rate