Alex Terrgi here. Coughing up green stuff may not mean what you think it means. It doesn’t always mean pneumonia. Sometimes it just means you chewed your soft and squeaky toy, who you lovingly called Mr. Snaky while he still had his squeakers, into tiny green bits of fluff, most of which you spit out on the rug for the vacuum cleaner, but some of which went down your throat and got stuck there. Until you coughed.
So don’t worry about me, I’ll be fine. If you want to worry, worry about Mr. Snaky. I don’t think he’s going to make it.