((I'm a new vapor, got my ego on Monday)) My best friend, whose dad died of lung cancer a few years ago, tried my ego on Monday. She liked it, blew a smoke ring and ordered one for herself. I ordered a 6mg menthol juice for her to try, since she likes to chain smoke in the evenings while playing games. Later that evening, she said she got a headache from smoking it for 30 mins. I originally thought it was from too much nicotine, so we ordered 0 nicotine liquid. The past few days, I've been reading about PG sensitivity/allergy. In preparation for the worse, I went shopping for all the ingredients for all VG no nicotine juice: usp VG, approved flavorings, measuring instruments and everclear. I made grape juice and it's pretty good. I'd love to sour it up a bit, need to research what is acceptable to do that. Anyway, I'm doing all this to lessen the chances that she won't like vaping. Soon, I'm gonna be a vaping evangelist, standing on the corner, yelling to random people. just kidding.