hi. my mother inlaw has stage four cancer.a brain tumor and also lung cancer. She had CT scans about three months ago, which showed the brain tumor was gone. they continued the aggressive chemo and radiation on the lung. all were completed two weeks ago. no further scans have been done. for the past two weeks she had flu like symtoms,no fever. and now is confused and unable to stand or walk due to dizziness. she also hasnt been eating. i feel this isnt a flu, and shld b taken to the ER. what do u think