I actually thought that I may have been allergic to PG, if not atleast sensitive because when I started
vaping it was with 100% PG (dekang) and I noticed that I felt almost high and would get really bad headaches. I had heard about the possibilities of a PG allergy, but I otherwise liked
vaping so much that I was denying any issues I was having because I didn't to have cause to stop vaping ..
Having nothing to do with thinking I had a possible PG allergy, I started to mix my own juices and I have felt perfectly fine ever since, not a single headache, or overwhelming high feeling. I mix my juices at either 80/20 or 70/30.