Well I am currently still working on the PG/VG ratios, to try and get a better reaction. I started on 70/30 VG/PG ratio. This caused breathlessness. Then last night I tried 100% VG, also caused mild breathlessness. I have tried also 70/30 PG/VG ratio, similar reaction. So basically what ratio can I try next? Or am I simply allergic to Vaping full-stop??? Any ideas or advice much appreciated!!!!! (currently on pipes and cigs but trying to keep it way down! But how much longer on the tobacco!!! GGGRRRRRRRR!!!!!)