My girlfriend and I noticed right away that we would be more thirsty after a vaping session and also waking up the next morning. My girlfriend explained the other night she stood next to the fridge refilling her glass over and over again drinking a bunch of water and she never does that. Now I know when you smoke cigs it's nice to have coffee, soda, red bull that makes everything better but with vaping we just seem more parched. Maybe it's a side effect of quitting smoking?