My father was diagnosed with stage 4 lung caner in late April. He had 4 cancer nodules (?) two in each lung. The oncologist said that at his age and at the advacement of his cancer he would only live another 3-6 months. He is still going, but the last two days he has had diarrhea with a LOT of bloody discharge. He is on both the pill form and the liquid form of morphine now and he is still eating but I am thinking that this may be a sign that the end is getting closer. What should we expect in terms of time now and what is to come in terms of additional symptoms?