VANLON

Thank you sir for your advice

Usually the negative effects show up age you age. You look young.
 
But you should be aware that in the US, fewer and fewer places allow smoking, in many areas it is not socially acceptable, some employers will screen for smoking and forbid it on the job, and some insurance companies will not give you health insurance or you will be asked to pay a higher rate. Think about quitting soon! It's the healthy and smart thing to do.

Good luck with your medical
i cant wait to get mine done as well , i cant concentrate to my everyday life .

making me terrified coz i have  read many comments for those who fail medical exam ...  thinking that  they might find a spot on my lungs cause of cigarettes.
 but thank u sir this making me feel much better ,.  

Smoker as in marijuana? If not, there shouldn't be anything to worry about.