If you start to feel queasy, upset stomach, headache, dizziness ... put the stick down for an hour or so. I've done it, I'm sure many others have. It's easiest to do when you're just kicking back with nothing to do and have your pv in hand.
I like to chain
vape when I'm dicking around the house, but lately the 18 and 24mg stuff has just been too much. I think part of the reason is that I've become a better vaporer, and the technology is simply better. I'm consistently getting huge plumes of vapor, and not spending anywhere near the amount of time fiddling with my stuff to get it working optimally as I used to, which means more
vaping. I've been using 12mg all day today and it's still almost too much nicotine. I have some plain PG coming in the mail, and some flavors, so I'm going to start cutting this stuff down drastically. If I can
vape all day at a few mg or at 0 and be satiated ... well, that would just be sublime.