Hi everyone. So my Dr thinks I have post nasal drip, and alot of my symptoms do make sense. Runny nose, tickly/sore throat, constant need to clear my throat, tickly cough, hoarse voice. A minute ago though I noticed my chest was a bit rattly, and i coughed up (sorry tmi) some thick white phlegm with hints of yellow. It was similar to what comes out my nose when it's really runny. I was just wondering whether post nasal drip can travel so far down that it can go onto your chest? I know it definitely causes mucus build up in the throat, but I don't know about the chest?

Thank you.