My father, age 90, is brining up a lot of mucus, he has a pacemaker, HE TAKES Aspirin every day, he does have some pain (mild) and he is wheezing, could hs lungs be filling up with fluid, could he have pneumonia, or bronchitis, he quit smoking 19 years ago, he does not want to go to the hospital now, he sys to take him tomorrow afternoon (he has games shows to watch( Should I force him to go to the hospital or just keep an eye on him tonight? He is fine other wise. He is a tuff nut, cantankerous too. Thank you