each patient is different , but usually toward the end patients dont eat, they sleep more and they have a wheezy, raspy breathing. What are you trying or have you tried for the vomiting?
Screening for PC is a huge issue and the focus of much research. As of now, PC is asymptomatic in ealy stages when a cure might be possible, difficult to diagnose even when symptoms appear and difficult to treat when diagnosed. All that adds up to a 2% ,5 year survival rate.
God bless your time together.