I started vaping a few days ago I was smoking a pack a day . I am using a basic ego style I was told to go with the 24 and then the lady at the store said to buy a zero also and mix them . I was smoking maybe 5 cigs a day and vaping . started getting chest pain after I started vaping manly . I do have a physical job so I do get tightness in my chest on the left side sometimes. is the juice I am vaping to high ? I am vaping to much ? what is the real design just a couple of puffs every hour or so ??????? now I have stopped vaping and on I am smoking half a pack a day . Thanks