hi  

i used to be a moderate smoker for almost 2 years and heavy smoker for one year

i am a medical student so i realized the risk of smoking and i see people dying due to diseases related to smoking every day 

so i decide to quit  

 it is my 9th day without a cigarettes 

 i feel headaches , drowsiness . head lightness , craving and anxiety

but all theses symptoms don't  bother me  cause i know this is nicotine withdrawal symptoms and it gonna disappear by the time

but recently i start to cough really bad with expectoration  , having chest discomfort , tightness, shortness of breathing and dyspnea 

i wanna ask is it normal after quitting

i search about it a lot on the internet and i found nothing 

am i need to have chest examination  

i need a professional answer from a specialist or from ex smoker who experienced this 

 

thanks ^^