Hi, Welcom to Healthcaremagic.com As you said you have prostate non malignant growth which is confirmed by multiple biopsies. You don t need to worry any more because when a patient feels he has some dangerous disease like cancer he starts becoming worried and takes too much of stress, more in case of women. Anorexia nervosa is a condition when you don t take meals properly for a particular reason in your case it is the tumor related. So be relaxed as much as possible, restlessness and stress increases your basic metabolic rate that leads to weight loss. Hope my answer will help you. Regards ......