Sorry you're feeling rotten. You'll feel so much better after you've detoxed and have been sober for a bit. I've had that kind of chest pain, too...kinda scary. I've never smoked so I can't speak to that, but when I was in rehab I was astonished that a few folks quit drinking and smoking at the same time. They all said it was easier that way. I guess because they go hand in hand for some? Not sure. Hope you feel better soon.