These symptoms were collected and compiled by members of Nicotine Anonymous.  The good news is that these items are symptoms of our bodies getting better.  We have finally stopped poisoning ourselves.  When we quit consuming nicotine, our bodies have to adjust.  The long term prognosis is good.  Short term, we're a little uncomfortable.  Read and enjoy.

What a paradox! You’ve quit smoking; supposed to feel better, usually you don’t. 
Feel sleepy, lazy, tired. Some have sudden bursts of energy – insomnia. 
The guy with the 160 IQ (that would be all of us with our cigarettes!) can’t add 2 + 2. Fuzzy thinking, constipation, diarrhea, gas, gastritis are all part of the recovery process. 
Lungs hurt. Memory disappeared. Can’t think/speak clearly. Overeating = weight gain. Try water, exercise, swimming. 
Helpful to relieve craving for taste of nicotine: chew licorice root (50x sweeter than sugar cane); sip mixture of ½ to 1 oz of fruit juice in 8 oz. Water; chew dry cloves. 
You whitewashed your mouth all those years. When you quit smoking, your mouth gets a little uppity. Gums bleed, throat sore, bad taste. Try gum temporarily. 
“Pretty good health” before quitting; “now I’m sick.” Got latest flu from Orient. Shortness of breath. Anxious. Workaholic. These disappear gradually. 
Practice handwriting when you don’t know what to do with your hands. 
When physical side effects are over, emotional symptoms start kicking in. We’ve given up something that was with us most of our adult lives. We have been emotionally dependent. We may feel enraged. We may experience anger, sometimes bordering on violence. We feel resentful (especially toward smokers), anxious and lonely. We are envious of smokers. We blame others. We feel victimized, and over-sensitive. Our feelings are very, very fragile!Advise others what’s going on, how you feel. Assure them they shouldn’t take your behavior personally. Try staying out of their way, or whatever works best for you to keep your relationships intact. 
You never cried before, and now you seem to cry all the time. You’re afraid to be alone. You’re afraid to quit. You’re afraid of failure. 
Some of us are depressed, even suicidal. 
Many of us have smokers’ dreams. These can be very real, very frightening. We experience fear that we are hooked again. And we just want to hold a cigarette, or a pack. All these are common notions that go through brains that have been fed a powerful drug for years. 
Nicotine addicts are devious – can rationalize anything to anybody, “smoking will fix it”. But it doesn’t 
You may feel you need to slow down a little. Later you might entertain the thought you can handle it now. Uh uh! You’re a puff away from a pack a day! 
Some real jittery times (other than first days) are between 3 and 6 months and just before 1-year anniversary. 
A lot of us talked about having programmed ourselves for failure for a lot of years, and “wouldn’t having a cigarette on your 364th day be appropriate?” 
Good things: breathe again, run again, climb stairs, forget that wheeze, energy. Emotionally we get to know ourselves, find out whom we’ve been hiding behind that smoke all those years!