I'm vaping into my third week now with cartomizers from SI 18mg nic. I added glycerin to make the throat smoother but it left me all gunked up in the throat. I think nic level may be too high? Been awake since 11am yesterday and am at work now. I don't know how I am awake, I really should not be writing code in this state haha. Besides the fact that my gf kept me up to argue about riddiculous issues, all I wanted to do was sleep but I did not close my eyes at all last night. Any recomendation as to what nic level I should be using? I ordered juices with 12mg now.