Chronic Phlegm Collecting in my throat, I constantly have to swallow

I had a bad case of what the doctors said was bronchitis March 2025, almost a year ago, and as of Jan 2026, I am still dealing with mucus in my throat. Although they did say that without a scope, they could not be sure. It is best described as a sticky mess right where I swallow and constantly has to be cleared, but rarely is any mucus produced up, just swallowed. Here is the timeline. In March 2025 the sore throat started and then a cough. After about a week, I went to the clinic and they said it was going around. The cough became worse and it became really bad and constant. After several more trips to the clinic and a chest x-ray, (unremarkable), we tried some different meds with no results. After about two months I improved, but still had an occasional cough and just lived with it. In Nov 2025 the phlegm in my throat became worse so I went several more times to the clinic. They had me go two weeks off of Lisinopril, then Prilosec for two months, and Mucinex for a week with no change. I can't describe it as a cough anymore, just having to clear the mucus from my throat where I swallow very often durning the day. It feels like a sticky mess right where I swallow.

68 year old male, never smoked, 160 pounds, never short of breath, regular exercise.

I am looking for ideas and others that have had this. Thanks.