My mom has been in assisted living for 5 weeks and she has lost 12 pounds during this time. She weighs only 80 pounds. Now she is refusing to eat and says that she doesn't want to eat because it will make her sick. She also seems to have no sense of taste and has difficulty swallowing. She won't drink any kind of shakes or nutritional drinks. I don't know what to do. She has vascular dementia and alzheimers. Could she be in the later stages of the disease even though she is still mobile and able to dress herself? She told me today that she didn't think she could live much longer like this.