I am19 years old male, I started having chest pain after I smoked 20 cigarettes in a span of 5 hours about a week ago, After that I started having upper back, lung pain when I lied down sometimes or after smoking. Now I'm just experiencing chest pain in the muscles above the ribcage when I smoke or touch or press those muscles. I have never experienced such conditions before, I had my echo test done a couple of years back before I started smoking, everything was fine then.