Return to Smoking & Vaping Chest Tightness Chest Tightness Cold Symptoms Cravings Dizziness Gas Hunger Irritability Lack of Focus Low Energy Sleepiness Ways to Cope Why you’re feeling itYou may have sore muscles from coughing, or tense muscles from nicotine cravings. How long it lastsA few weeks What you can doTake some deep, slow breaths.