I am a 24-year old who has been smoking off and on for the pat 4 years (hard college days, of course). When I say off and on, I mean that over 4 years, I have spent about 6 months smoking daily, and otherwise smoking on weekends only, with periods of absolute abstinence for a few months at points. I am quitting now (of course the health issues, but mainly because my lifestyle and life are changing both professionally and personally).
I am curious as to what the permanent lung damage would be for now? While I understand this may be an overly broad question, any thoughts? I always knew the consequences of smoking and consciously knew I would stop once my lifestyle induced it (getting engaged, moving out of NYC, etc. which is happening now). In the periods when I have taken 2-3 months off, only the first few weeks give me the requisite coughing, throat clearing etc., but I have never had anything like coughing up blood or even color tinged sputum, phlegm, etc.