For almost 7 weeks now I have had phlegm in my throat that drains into my chest. I don't have a cough but I can breath hard and catch a little of the phlegm and then cough it up. You can hear it rattle in my chest when I breath sometimes too. My lungs are good and I can breath fine but voice is horse and I have had post nasal drip. I went to Urgent care and they gave me steroids and antibiotics but nothing has worked. Could this too be from long term covid. This has been driving me crazy.