My mom is 84, she has emphazema and a pacemaker. Over the past 10 months has been admitted to hospital 3 times. Twice we were told they didn't think she would make it because she wanted to die. She is tired and ready to pass on. On Tuesday she was admitted again due to chest pains and battling to breathe, she has pneumonia in one lung. She hasn't eaten anything since being admitted. I think she is starving herself as the last time she was in hospital a lady in her ward did exactly that, refused to eat and died. My mom said if ever she is admitted again she will do just that. She says she isn't hungry. What I would like to know is how long can someone survive without eating? Will she be in pain? She has 2 DNRs and will refuse any invasive life saving treatment.