Hey guys, I have been vaping since Jan 01 2015. I dripped and vaped loads and my chest has got progressively worse. So short of breath. Somebody told me that it took 18 months for his chest to feel better than ever and he vapes loads. I have tried max pg - max vg and no difference. I've bought expensive 5 pawns and also a lot of DIY with no difference. How long does it generally take everyone's chest to settle down and feel better? Thanks