I'm a terrible social smoker (don't care about smoking most of the time, but once I've had a drink - oh dear). I'm really am trying to give up at the moment as our LO is nearly 2 and I'm trying to get pg again. I've taken up running again to give me something else to think about. My chest is really tight though since I started stopping IYSWIM - is this a common side-effect of stopping? will it pass or do I need to go to the GP and get it checked out? anyone else had this side effect? The NHS site just says you might be irritable and have cravings and also a cough but I've never had a smokers cough so this tightness is a new thing... any advice gratefully received, pls stop me thinking I'm dying!