Please help me. My world is falling apart.

I'm 25 years old. My sister is 18. My mom went into the hospital last week because she had stomach pain and they initially said constipation. She had 0 other symptoms apart from that pain in her stomach, and blood results and everything else came back fine. The next two doctors she went to said it was probably pc, and that there was no cure as the mass looks big and they said they see two spots on her liver I think. We are still awaiting the 100% results but the doctors said that it is 98% the case. My family is family apart, please tell me there is something we can do, though she said she won't be doing chemo. I need help. I can't lose her.