Stella, hello, and welcome to the forum. I know of several members who can relate to you. I'm sure they will give you some input. Your mom may not have the will to live. That sometimes happens when one's spouse dies. You need to come up with reasons for her to want to recover (children and grandchildren, pets if she has them, how much better she will feel if she eats, etc.) Try giving her anything that is high in calories that she might possibly eat, such as milk shakes or Ensure.
The pain is probably from her colon/ileus. There is seldom liver pain and if there is, it would most likely be in the right upper quadrant.
What are the chances that your mom would stay sober if she gets out of the hospital? Would she be willing to go to AA? There's a lot to consider here and also a limit to what you can do. It has to come from her. There's a good chance she can recover from all the medical problems if she does the right things. But the choice is hers.
I suggest you read the info in the folder at the top of the page entitled Hepatitis Resources. It's about liver disease in general and will educate you. Also, note that there is a Medical Terms thread where you can find correct spellings to common words associated with liver disease.
Hugs,
Connie