Im only 5'7 right now. About a year ago, i made a terrible decision to start smoking and i am really addicted to cigarettes now. I dont know if ill be able to quit anytime soon. Although it hasnt been affecting my gains in the gym, I havent seen any linear growth in the past 8-9 months. Is it possible that smoking stunted my growth, despite the fact that everything else about me is pretty much healthy?