Awoman eats cookies, cake, ice cream, and almost anything else that is sweet. at some point during the binge, she takes a huge dose of a laxative to "empty out" the food. her taking the laxative, and the assumption underlying why she does it, would lead to a diagnosis of:

 The answer is bulimia nervosa classified under the purging type. This is perfectly described in the scenario since the woman used laxatives to compensate for her binge eating. Purging type used diuretics, laxatives, and enema while the non-purging type makes up through too much exercise and fasting.