Not hungry

Patient: My Sister hasn’t eaten since the end of june.She’s 54 and has went from 153 to 105She’s had scans and mri done they found she has an enlarged bladder and thickening if the bladder wall.All her tests indicate no cancer.She does have what they call a spir in her back.Now their thinking it’s caused by a nerve issue;not by bad nerves.Her time seems to be running out waiting for answers.Hope you can give me some insight on this.Thanks Linda