This is a very specific scenario which I haven't been able to find comparable to anything else online, so here goes:

My Dad recently had a stroke, and quite simply is refusing to even get seen by a doctor. He lives in Spain and I live in UK so communication can only be done over the phone, due to this I have limited information on the specifics. This is a scenario I have predicted and run over in my head 1000s of times, due to his general disregard for his health (drinker, smoker, rubbish food eater and does no exercise) and the fact that he has talked to me about his own death more times than I care to remember. I have had reason to believe he has lung cancer, the man hasn't been to a doctor or dentist in my lifetime (I turn 30 in 3 days) The point is, he -will not- be treated. There is no convincing him, so he is just suffering it out at home. 

There is nothing practical I or anyone else (medical professional or otherwise) can do to help or improve things for him, and to intervene in any way would be strictly against his wishes. He is the most stubborn person I have ever met, and he was the very first person I met. Due to this and a life-long commitment to alcohol, he and I haven't had the best of relationships. I am way out of my depth. Do I fly over and say good bye?