Yep:
Symptoms of nicotine withdrawal generally start within 2 - 3 hours after the last tobacco use, and will peak about 2 - 3 days later. Symptoms may be severe, depending on how long you smoked and how many cigarettes you smoked each day. Common symptoms include:
An intense craving for nicotine
Anxiety, tension, restlessness, frustration, or impatience
Difficulty concentrating
Drowsiness or trouble sleeping, as well as bad dreams and nightmares
Headaches
Increased appetite and weight gain
Irritability or depression