Nausea and vomiting, painful regurgitation, bloating and abdominal pain and other discomfort may occur in the stomach and intestines after quitting smoking. It is normal to experience discomfort in the stomach and intestines after quitting smoking. Due to the relatively large nicotine content in cigarettes, the nicotine content in the body will tend to decrease after quitting smoking, and nausea and vomiting, painful regurgitation, eructation, acid reflux, abdominal distension and abdominal pain, and loss of appetite may occur, and in severe cases there will also be weakness in the limbs and emaciation. Symptoms of gastrointestinal discomfort after quitting smoking usually disappear on their own after a period of time. If you can’t get any relief, you should consider whether it is caused by organic and functional diseases of the stomach. Prolonged smoking will stimulate the gastric mucosa, damage the gastrointestinal function, so that gastrointestinal dysfunction, gastric ulcer, gastritis and other diseases, to pay attention to, specifically consult a professional physician’s opinion.