hi everyone, thanks for your suggestions and help. i tried switching to vg and it made throat clearing and phlegm worse. as i said i do have chronic bronchitis and i think for some reason the e cig is just acting as an irritant. much as i HATE the idea i may have to stop vaping and put the patch on. i just wish i knew what the heck caused this after 6 months because initially i was fine. i know i will be miserable with the darn patch.