A craving is a strong, uncontrollable desire to smoke. When you first quit, your cravings are the strongest.
Cravings: What Causes Them?
Your body will go through nicotine withdrawal when you initially stop smoking. You may experience fatigue, irritability, and headaches. You may have dealt with similar feelings in the past by smoking a cigarette.
Cravings can be triggered by certain places and activities. These items may make you crave a cigarette if you used to smoke after meals or when talking on the phone.