Coughing can sometimes trigger a gag reflex or make you feel like you have to throw up due to the interconnected nature of the respiratory and digestive systems. The primary reasons for this response are:
Close Proximity of Airway and Digestive Tract: The airway (respiratory system) and the digestive tract (gastrointestinal system) are closely situated in the throat region. When you cough forcefully, it can create pressure in this area, stimulating the sensitive structures in both systems.
Irritation of the Throat: Coughing occurs when your body is trying to expel irritants or foreign particles from the airway. During a coughing fit, the back of your throat may get irritated, leading to the activation of the gag reflex, which is designed to prevent choking by inducing vomiting.
Vagus Nerve Stimulation: The vagus nerve is a cranial nerve that plays a significant role in controlling various bodily functions, including both coughing and the gag reflex. The stimulation of the vagus nerve during a forceful cough can sometimes trigger the gag reflex as well.
Stomach Pressure: Forceful and prolonged coughing can increase pressure in the abdomen. This pressure may affect the stomach and lead to a sensation of nausea or the feeling that you need to vomit.
Postnasal Drip: Sometimes, coughing can be associated with postnasal drip, where excess mucus from the nose and sinuses drips down the back of the throat. This can lead to irritation and a gagging sensation.
It's worth noting that not everyone will experience the gagging or nausea sensation during coughing, and the severity of the response can vary from person to person. If you find that coughing frequently induces gagging or vomiting feelings and it is causing concern or interfering with your daily life, it's advisable to discuss it with a healthcare professional to rule out any underlying medical conditions or other contributing factors.