What is the difference between a common cold and pneumonia?
I have developed a real bad cough and am now hacking stuff up from my chest. My body has some aching and my energy is almost sapped. Something is not right, however I'm not about to panic, but I am curious: How do you know if what you have might require hospitalization? I have heard if you are hacking phlegm up that is so green it practically glows in the dark. I haven't reached that point yet, but the coughs are so damn painful.