I have been using my ecig for 2 weeks, all I have had is mouth problems since. I started with the normal tobacco flavor, within the first day i got canker sores, then a few days later, i got bleeding gums, a week of that and it finally went away. now i have a horrible metal taste in my mouth and it is not going away, so I went back to my vape shop and talked to the manager and he suggested that its the PG that is causing my problem and that I should try PG Free, so I bought PG free all natural, all organic ejuice. The metal taste went away slightly, but I can't find all natural PG free ejuice that has more that 12mg! So I can't get a good vape, I need at least 24mg. Does anyone have this problem? Any suggestions would be greatly appreciated.