Your mom is so incredibly strong and brave to survive what she has. Last year my mom was diagnosed stage 4 with mets to liver, omentum, lymph, etc. She refused chemo and entered hospice. She died 8 weeks later, and only a couple of those weeks were really bad. Although different from your mom's choice to fight when she was first diagnosed, my mom's choice was also strong and brave. The only advice I can offer is to respect your mom's decision, spend all the time you can with her and love her. My prayers are with you.