Chris,
Whatever temporary discomfort you may be dealing with is well worth the effort to rid yourself of cigarettes. The only thing smoking a cigarette offers is a brief nicotine fix that will silence the addiction on a very temporary basis. A nicotine fix is a fleeting thing. If you decide on one nicotine fix, you might as well commit to the thousands of cigarettes that inevitably follow that first one. For one nicotine fix, you will chain yourself back to the cigarette. You will continue to serve out your self-imposed life sentence of being a smoker. Is a nicotine fix worth more than your freedom, health, and self-respect? How much more are you willing to sacrifice for a never-ending series of nicotine fixes?
Remember that any anxiety, irritability, lethargy, depression, or any other less-than-desirable feelings you may currently be experiencing are not to be blamed on quitting cigarettes. Withdrawal and all of the negatives associated with it are a result of having smoked cigarettes. The cigarette is the cause. The quit is the cure.
You are a non-smoker now. You never "needed" a cigarette. The cigarette has nothing to offer and there is no rational reason to ever smoke again. Smoking is an exercise in futility that borders on insanity. The whole act of smoking depends on an addicted mind continually falling for the same illusory tricks day after day after day...All that is needed to end the cycle is for you to decide and commit.
The choice is yours and the power is within. Proceed.