Isn't pneumonia very obvious? My mom says I would be in bed *almost dying* if I had it, but I'm fine. Just cough and green mucus. I am very worried

Pneumonia. Pneumonia is a condition diagnosed by a constellation of symptoms (cough, fever, shortness of breath) with evidence on chest X ray of lung involvement. It can be cause by a bacterium, virus, fungus. Severity of symptoms range widely. Chest X ray evidence is really diagnostic. Everyone reacts differently to infections, but most people feel pretty awful if they have pneumonia vs bronchitis.