Ah, I get you now. Ok, try this. When the pain and tightness get realy bad breathe in and out slowly, just like you are taking a drag of a death stick.
Some times, as smokers, the only time we take deep calming breaths is when we are smoking. It became our way of taking some time out and relaxing and we need to replace that time when we stop. Smoking is insidious and can affect all of our reactions and reactions and we need to replace them. Do you get what I mean? The tightness and aching may be helped by just taking the time to chill out and relax. Also try realy, realy icy cold water. That always helped me.
In the end though it does go away. Some times it can get bad for a week of two, but that subsides. I have not had any major problems since about 9 months quit. I occasionaly get a minor crave, but I can bat it away easily. You will get there too if you just hang in there.
You are doing great btw! You realy are kicking ass and taking names. Awesome job!