I have been using the Wow Peppermint as my everyday vape almost since it came out. I decided to try the redbull flavor again and after using it for about a week it has been making me extremely nauseous. I tried altering my diet and everything to rule one thing or another out, but switching back to the Wow Peppermint has seemed to stop the pain. I am wondering if there may be a difference in the glycerol used and if so it may be what I have to look for from here on out.