Part (A) Do you have the following symptoms?
1. There is weight loss (or for children, a lack of weight gain), leading to a body weight of at least 15% below the normal or expected weight for age and height. For adults (age 18 or above), you may use BMI as a reference: the normal range of BMI is 18.5 to 25. For children (under age 18), you may use the chart of growth standard of Southern Chinese as a reference: http://www.cuhk.edu.hk/proj/growthstd/chinese/gs_usin1.htm
2. The weight loss is self-induced by avoidance of ‘fattening foods'.
3. There is self-perception of being too fat, with an intrusive dread of fatness, which leads to a self-imposed low weight threshold.
4. A widespread endocrine disorder involving the hypothalamic-pituitary-gonadal axis is manifest in women as amenorrhea and in men as a loss of sexual interest and potency.
How to determine if you have Anorexia Nervosa?
If you have most of the symptoms from part A, you may be suffering from Anorexia Nervosa. You may consider seeing a mental health specialist for professional advice.