Um, your lungs are feeling better because they're drunk? I wonder if some of your symptoms are from quitting smoking 12 days ago, (and some people find that they can't handle large amounts of VG without getting that heavy lung feeling, so maybe you just put enough everclear in there to bring the ratio down to acceptable) but regardless, I'm glad you've found a solution.
If the heavy feeling returns, you can actually dilute your VG down with PG, it's kind of a more well-known option.
With that said, it's potentially possible you are sensitive to PG, not VG, but at this point since I don't know your juice ratio, I will just say congrats? I believe it's acceptable to inhale tiny amounts of ETOH, as long as you aren't trying to overdo it, but there are other solutions to this, probably, if you so desire.
Congrats on switching to vaping, by the way, that's fantastic, well done!
Anna