My mother was just diagnosed w/ Stage 4 lung cancer on November 2011. Her right lung has callasped and fluid is building up in her left lung. Mom wants to put up a fight and do Chemo, but at this moment she is really weak and tired. And I am worried that she will not be able to handle the chemo in her condition. They said her cancer has spread to her bones. She is only 4'11" and weights 70lbs. Should she try the chemo? What would you do in that situation? All I can do right now is to pray for miracles and strength for her.