Hello, I started vaping almost a year ago and everything was going absolutely great, but during the last month I started to wheeze and cough a lot after a few hits. I don't know why. This came out of nowhere. I vape primarily 70vg30pg ejuice in my Nord. I tried a 50/50 ratio and got the same bad effects. I only vape nic juice and have never touched THC juices or anything of that sort. I do however smoke an occasional CBD hempette, but not frequently. Should I move to a 100%vg juice option? If so, what hardware would I need?