I have been smoking for over 15 yrs and about 3 yrs ago that everytime i smoke i start feeling upper back and body pain!! I will quit for couple days at a time and i would feel no pain but once i take a hit of it the pain comes back!! This sucks for me because i enjoy smoking but i rather quit for good to not have this pain!! Good luck everyone!! If u are having pain every time u take a hit i think quitting is the best answer!!