I think it's just your body getting rid of the chemicals from the cigarettes. When I first started vaping, I had this terrible metallic taste in my mouth for a week. I was really worried it was something in the juice or atomizer. Turns out my gums were bleeding, which is pretty common after you quit smoking. Just think, you were regularly ingesting 4,000 chemicals everytime you sucked down a cigarette. That stuff adds up and your body has to get rid of it somehow. Have you ever eaten really strong curry? You smell like a market in Bangledesh for a couple of days after eating it. Give it a little while and if it doesn't go away or it gets worse, go see your doctor. I'm not a medical expert by any stretch, but I think you're alright.
Thank you Doomed! I'm not a medical expert either, but from what you and others including Charlz have said, I think I'm ok too. I think my body is definitely going through some changes and adjusting and getting rid of poisonous chemicals after having smoked so much for such a long time. I was blaming it on the propylene glycol like you were thinking it might be the juice or atomizer, but it's probably from the thing that's been poisoning me for years...cigarettes!! I am doing much, much better than yesterday which is great! Thank you for your comforting words!