Does an employer have the right to talk down to you and talk down about other employees to other employees?

I have worked for a storage facility for nearly 2 years, after 8 months I became a manager. When I first got hired I was kinda weirded out when she told me she don't normally hire people with kids, she also said I had on to much make up after I had just got sprayed tanned. Since I have worked here I get treated and talked to horrible if I don't answer the phone when she calls even if it is after hours and I call her right back. She talks about other employees to other employees, personal things and she gets upset if we have something personal going on that she doesn't know about. She questions everything I do, I try to tell her if you can't trust me I shouldn't be manager but she don't get it. She gets upset if my child is sick and I have to call and be replaced for the day. She doesn't want me to take a lunch break, she told me I have a beautiful daughter just don't let her get fat. I am over weight I was so offended, she said I should do like her and eat 1 time a day. Please help!