Sometimes I just feel like buying and smoking a cigarette because of excess of stress. I used to smoke a year ago, but lately I have these urges to smoke. Sometimes the battle between my willpower and desire is won b the former. But sometimes I succumb to my desires and do end up smoking. But the smoke feels like it's ripping my chest apart every time I take a drag. I end up coughing and throwing away the cigarette half way. Is this normal, is smoking sometimes okay?