While the JUUL got me off cigarettes it did have some bad side effects. Quit cigs May 6 2019, started JUUL May 6 2019. Started to get fullness in stomach, gag reflex was getting bad and followeded by wretching. My husband asked...didnt this all start around the time you started JUUL. I quit using the JUUL and to my suprise almost all symptoms stopped, no more gagging, wretching and nausea. On the other hand I am off cigarettes but afraid of the long term effects of this.