My mother who lives with me, my husband and our 18 year old daughter is just mean all the time. She has been to doctor and she does not have dementia or Alzheimer's. Doctor did extensive blood work and there was nothing wrong there either. She seems to enjoy making my daughter cry . For example. Daughter will make her a treat for dinner and she will outright refuse to eat it or throw it away. She won't say thank you but will spend days talking about awful the pie or cake was (or whatever it is that is being done for her) She doesn't think she should just be grateful for the effort. The more she makes me or my daughter cry the more she laughs at how "stupid" we are because we let dumb things bother us. When I thought she has dementia it was easier to take because I felt she couldn't control herself. Now that I know she is choosing to behave this way I don't know what to do. She is almost 90 and has no money so living on her own is not possible. No other family members will take her in. At my wits end as to how to deal with her. I have done everything I can think of. I tried telling her that she is hurting is and asking her to make a change but she just yells or laughs depending in her mood. We have one more issue with her as well. She refuses to bathe. She will soil herself and still refuse to take a shower despite our having grab bars and shower chair etc and that we will help her. It is a big battle and she will only give in when she is so dirty that we are getting sick from the smell. Does anyone have any suggestions ??