Extreme Difficulty In Walking, Breathing Problem, Diarrhea, Sore Throat. Taking Oxycodone, Morphine For Pain. Should Be Taken To Doctor ?

Question : My father is over 60, he is a Vietnam vet with agent orange exposure. He is having extreme difficulty walking, and last night was having a hard time breathing. He says he has had a swore throat for about a week now as well but does not know for sure why. He has had diarrhea for a number of days, and has not been able to hold down any food for about 4 or 5 days. He has been drinking some water, but also a good amount of wine. Between the wine and diarrhea, I can only assume that he is very dehydrated. He takes oxycodone and morphine for his pain, but has not had any for the past week, and he attributes his difficulty to the fact that the pain is too great for him to function properly. He insists on not going to the hospital because "they won't be able to do anything" for him. I know that he should go, and says to give it another day. I'm trying to decide if I should demand that I take him, or if I should just call an ambulance, or if I should "give it another day" what do you think?