Withdrawal symptoms last varying amounts of time and may not be the same for everyone. However, a general withdrawal timeline may look like the following: The first few days: Intense cigarette cravings, coughing/runny nose, dizziness. The first 1 to 2 weeks: Constipation, gas/stomach pains, trouble sleeping. The first 2 to 4 weeks: Irritability, depression, restlessness, fatigue. Several weeks: Increased hunger, difficulty concentrating