DF has stage 4 lung cancer - doing really well and had lots of treatment but now been told there’s no other treatment options. He doesn’t appear to be ‘that ill’ so I wondered if anyone can give an indication of how long we might be looking at with no treatment? He doesn’t want to know but I want to have some idea.. could he go on for a while if it’s slow growing? I can’t understand how someone can appear to be so well with stage 4 cancer.. or will there be a sharp decline? I appreciate there are no answers but other peoples experiences would help I think.