Before you read any further, I have stopped vaping but I'm kinda bummed vaping might of caused it.i was a dual user for quite some time and my asthma had actually cleared up when I was only smoking a couple cigarettes a day and vaping but after a few months of just heavy vaping I got these horrible asthma attacks where I couldn't breathe, couldn't get any air in at all, they seemed more severe than when I was a smoker. Seems weird to me that vaping would clear me up at first then give me horrible attacks. Has anyone had anything similar?