I got a zit. No kidding. I think it was because of the oil. I'm 48 years old and hadn't had a zit in decades so that's why I'm assuming it had to do with vaping. I also got a little stye that went away in a day. If this had anything to do with vaping it's because I use to slowly exhale thick vapor out of my nose, which would then rise up into my eyes behind my glasses. It's possible oil collected on my eyelid or on the frame of the glasses, collecting bacteria and causing the stye. Sometimes I get a bit of a runny nose, just a little, a few times I have sneezed. I once got a nicotine booger that looked like a tiny sunflower kernal that was dark brown and oily. That's about it for side effects, lol. I also wasn't smoking cigs before I started vaping--quit years ago, so I can relate to the "buzz" comment. It could very well be described as a buzz. It's a better buzz if you don't vape all the time because if you do, then you don't much feel the nicotine at all, but if you take a good vape after a few hours of not vaping it really feels good, for about ten seconds it's like an orgasm. But the buzz if you can call it a buzz also has no ill side effects. I can concentrate better, I'm more relaxed yet have more energy, I can work like a dog after vaping without any bad side effects like other stimulants have, and the "buzz" is very short term, even caffeine causes a much longer lasting and harsher simulation. Oh, and if I vape too heavily in the evening before going to bed I wake up with what can only be described as a nicotine hangover but even this is so minor it doesn't keep me from functioning.
