Greetings, I have been vaping for a little over a year, and the first year I had no problems, but 3 months ago I started to wheeze from vaping. It was not too severe, so I cut back, and then quit for a little over a month. I started to vape again and I started to wheeze again and I do not know why. I use a Smok Alien with a Baby Beast Tank and also a Smok Nord first gen, and at the time I was vaping 3mg eliquid made by Naked, and not by the shop I bought it from. When I first started to wheeze, I was using my Nord and was buying my eliquids from ecblend dot com. When I vape I wheeze a little bit, and then it comes and goes. I tend to chain vape and will vape for probably like 10-15 minutes at a time. Does anyone have any ideas about this? I spoke to a Doctor, and he said that vaping liquids can have irritants, and he prescribed me an inhaler, which I use when the wheezing won't go away on its own. I have vaped ratios of 80vg/20pg, 70vg/30pg, 60vg/40pg, and 50/50 ratio.