I was having sinus infections several times a year (3 to 4 times) and I couldn't breathe fully from my right nostril.
Post surgery things seemed fine but my nose and cheeks were pretty much swollen for the last 3 years up until I decided to give my nose a rough rubbing/massage. About a week later (19 Feb) my swelling subsided completely but I then had symptoms of ENS (low mucus, increased air flow, then pain and cold in my nose). Symptoms subsided over time and I saw 2 specialists since then who said my nose looked fine and recommended small things (Like change bed covers, use saline, etc).
I'm now watching my diet as I feel it plays a role in how my nose behaves. I also had a bad reaction to an antibiotic a few months ago that affected my sleep and gut. I feel this may be playing a role as well.