My husband was diagnosed with prostate cancer stage 4 and liver in January 2010. He did not do chemo or radiation here in USA, he's been getting treatment in Mexico and he's doing ok. Recently he's been complaining of back and leg pains. We know he also has cancer in his right arm, lower lymph nodes and legs. Here in the USA they have giving him 3 weeks to live, and gladly he's still alive. My question is, usually how long does someone with this type of cancer last? He's very upset and always complains about life and that he wants to die, because of the pain of course. He's taking morphine for pain control.