No, walking pneumonia is just a weaker pneumonia. “Pneumonia” just means a build-up of fluid in your lungs. It can knock you flat on your back so that you’re bed-ridden if it’s bad, but if it’s not that bad it can just give you a persistent cough. It may or may not get worse over time but you need some antibiotics. If it’s due to mold, you’d need something that kills mold.

If you’ve got a cough that doesn’t go away and especially if it’s producing a lot of phlegm and you have a heavy feeling in your chest, you really should just go to the doctor. Over time, it can cause scarring in your lungs that can lead to chronic bronchitis.