So I have been off analogs for a year come next month. I started off with the V2 brand ecigs then moved to an iTaste MVP and several different tanks. The juice I went with was a 70/30 pg/vg blend then to a 50/50 blend and just last month, a 60/40 vg/pg. The coughing is not an everyday/night thing, only when I have been drinking. When I drink, I vape a ton.... About a month ago, I was up half the night coughing up phlem/mucous, wheezing, chest congestion and a somewhat dry throat. I never did this before, it just started. Does this scenario suggest that I should go back to a 70/30 pg/vg blend and see if that cures it or do you all think it is something else? Again, during the week I am fine, but when the weekend comes and I'm hanging with friends and enjoying some brews, I am vaping a lot and I wake up with all those symptoms....