The report further outlines that withdrawal symptoms set in anywhere between 4 to 24 hours after your last smoke. Withdrawal tends to peak roughly around three days after quitting followed by a slow and gradual sense of tapering off which lasts for 3 to 4 weeks. Typical symptoms include restlessness, headaches, tremors, sweating, digestive problems like constipation, an uncanny increase in appetite, cramping and sleep disturbances, as listed in the report. An added bout of intense nicotine cravings, skewed concentration, mood swings, irritability, frustration, anxiety and a lingering depression are likely.