Thanks, it's appreciated
My brother broke his nose a few times when he was younger and ended up having it splinted back into shape. Later on it collapsed but he didn't want to go through that again, it's not a pleasant couple of weeks unable to breath up your nose, and he ended up clearing his throat a lot because of it. This was the likely reason why the nodule inflamed eventually.
If you do a lot of forceful throat clearing, maybe it is something like that even?