Hi Snuggles...
I have a few ideas, but to try and narrow down the culprit, let's look at a few places things could go wonky -
1. Bad E-Liquid: There are several ways E-Liquid can become contaminated or go rancid. This would actually be my first guess, as many
'Top Quality' e-liquids are actually pretty much homemade. ...and while they can be great, they can turn rancid practically overnight with no notice whatsoever.
So what yesterday was so inviting, can practically overnight transfrom itself into something repugnant and nauseating.
Here's a super easy 'non-technical' test - "Sniff the oil in the bottle" If the smell is inviting, it's probably okay... If it makes you scrunch your face, furrow your brow, or turn away, it might be spoiled.
Now, I try to isolate that, because you said you haven't switched flavors or got a new batch...
But if you are using cartos, or cartridges, you could also be facing the same problem...
2. PG Tolerance Threshold Reaction: This one is a little more subtle, because some people have a latent allergy to PG. I know, I know all the research say's it's supposed to be inert. Just like EVA! One in 10 people has a violent reaction to EVA, they get really sick... And the FDA mandated that as an additive to all analog smokes. Now, of course, our beloved vapors don't include EVA, but PG, just like EVA - is supposed to be innert and non-reactive. But as you read through this forum, you'll hear countless stories about how many people have reactions to it...
So here's the thing: it's called a thresehold reaction - which means, your body doesn't respond to it until after you've been exposed to it for awhile (until you reach a certain thresehold / tolerance level)... Suddenly, it becomes revolting to you, nauseating, constipating, and gives you stomach cramps, bloating, gas, and an overall wretched feel...
For most people who have this PG reaction, it doesn't happen right in the beginning (for some it does)...
So here's a simple test to see if your likely to be having a PG reaction: "Are your eyes: Sore, Dry, or Blurring?"
One of the listed side effects (from the MSDS) on PG is 'Ocular Irritation' - so if the PG is making you sick, there's a good chance it's also irritating your eyes... (not always, but often the two go together)
So write back, tell us more and maybe someone who has had a similar problem found a solution that worked for them - I have a few ideas, but if it's just rancid juice
(which is my bet) it's pretty easy to sort out...
