So I got my boyfriend to try vaping for a week (trying to quit smoking cigs) which seemed to be working out for him, but then he reported that his throat was feeling very irritated and tight, and he had trouble swallowing AND it made him feel nauseous. Not sure if these are common symptoms for PG allergy but he said he wanted to continue using ecigs but just couldn't if it made him feel that way and bought a pack of ciggies. Do you think all VG or more VG liquids would help? He used the liquids I have which is usually a 70/30 PG/VG mix or 50/50. I want him to continue vaping instead of going back to the smokes so I'm thinking of buying some all VG liquid? If so, what vendors sell 100% VG liquid in good tobacco flavors? Thanks.