I'm just very sensitive to it, apparently. I've been vaping close to two years now, and for about a year and a half of it I vaped mostly PG (usually 70/30 or 80/20) juices with artificial everythings. Loved it. Started noticing some weird symptoms (very uncharacteristic breakouts, which is so weird for me, INCREDIBLE thirstiness all the time.. like stuck in desert thirst) but I just assumed it was more weird symptoms associated with my Fibromyalgia (thats a chronic pain disorder i have which gives me some weirdo symptoms), so I didn't think much of it. But then I was hunting on Natural Health Information Articles and Health Newsletter by Dr. Joseph Mercola (that's considered sort of the authority on natural medicine) and read some stuff about PG that had me wondering if that might be my culprit. Then I noticed a few people here saying they were sensitive or outright allergic to it, so I stopped the PG and went to straight VG juices w organic/natural ingredients. All my symptoms went away. Well, not the Fibro, unfortunately, but all my new weird symptoms. I gather some people just can't tolerate it, and im one of em. I'll still use trace amounts of it, since so many diy flavors come in a pg base, but I won't vape it unnecessarily, if that makes sense. I was worried because people say straight 100% VG liquids mess up cartos and such, but I've not had any problems like that with Annette's juices at VV. She makes em nice and thin. So for me, it just makes sense to stay away from the stuff that affects me badly. I wouldn't worry about it at all, unless you start noticing negative symptoms. The vast majority of people don't have any bad symptoms with PG. Hope that helped! 
Ooh, plus, the VV juices are almost totally clear, which is actually better than much of the PG stuff I was getting from other vendors (that really dark stuff can wreak havoc on cartos).
Ooh, plus, the VV juices are almost totally clear, which is actually better than much of the PG stuff I was getting from other vendors (that really dark stuff can wreak havoc on cartos).
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