A cpl months ago i was treated 4 walking pneumonia even though the test didn't show i had it. now i'm coughing again with runny nose and chest rttlng?

It happens: This far out it is unlikely that what you have is related to the prior illness. Most of these are simple respiratory viruses. If it slows you down enough you need to schedule a visit.

Pneumonia: I don't understand why your doctor treated you for walking pneumonia even though it did not show you had it. I suggest you see a different doctor in a different practice.