Hi, I am new here and hope someone can answer a few of my questions. I am a 30 yr smoker and very much want to switch to e-cigs. Since I have little knowledge I chose to buy Green Smoke online (only 2 pieces to the e-cig and very easy). I got different nicotine strengths, etc. My problem is that I've tried it twice and I keep getting this heavy feeling in my lungs (especially my right side) after vaping. I am not a deep inhaler, never smoked over a pack a day, so I don't know if I am doing something wrong or what. Is this normal? Part of the adjustment? Should I try something that produces less vapor? Any input would be greatly appreciated!! Thanks.