Hi my mom has terminal cancer of the kidney and now lungs. She is taking a pill form of chemo and seems to have a lot of the side effects. She eats very very little, buts drinks what she can. Now her vomit seems to be in huge amounts , more than what she would have eaten and drank put together, the last couple of times it seems to be quite dark in color, almost black. Her ankles are also very swollen, Can you tell us what this all means? Thanks a million!