Been vaping for over six months, but in the last month or so I've noticed the feeling of phlegm at the back of my throat. Its very sticky and difficult to cough up, but its there and quite annoying. There's a slight bit of irritation with it, and it overall feels like my epiglotis (?, the little punching bag) is bigger and I can 'feel' it in my throat. Been vaping mostly higher VG liquids, about 4~6 mls per day pretty consistantly so i'm curious about this new change. One of the most annoying aspects is its causing very bad breath. Sometimes I can catch a wiff when I yawn, or even while talking and its just gross!