Answer:
Bulimia nervosa
Step-by-step explanation:
Bulimia nervosa can defined as a eating disorder in which the person tend to consume large quantities of food but the person is afraid of gaining weight by self inducing her self to vomit or purging all the food he /she ate which is called Binge eating. Although this condition is life threatening disorder due to the intake of abnormal large amount of food within a short time frame or short period of time.
Therefore BULIMIA NERVOSA is binge eating which is often followed by purging.
Which is why Rachel is most likely to be diagnosed with BULIMIA NERVOSA.