Feeling Like Vomiting When Stressed? An SOS Signal from Your Stomach

Stomach pain or feeling like vomiting under stress is the result of complex physiological responses that cannot simply be dismissed as an 'illness of the mind.' Modern medicine explains this through the brain-gut axis, revealing how intimately connected the brain and gut truly are. Our brain and stomach constantly exchange information through a highway called the vagus nerve. When exposed to stress, the brain activates the hypothalamic-pituitary-adrenal axis, releasing stress hormones such as cortisol. These hormones alter gastrointestinal motility, increase gastric acid secretion, and reduce blood flow in the gastric mucosa. As a result, excessive gastric acid causes heartburn and dyspepsia, and gastric muscles experience spasms, leading to abdominal pain, nausea, and in severe cases, vomiting. Furthermore, the gut contains so many nerve cells and neurotransmitters that it is called the 'second brain.' Did you know that more than 90% of serotonin, known as the happiness hormone, is produced in the gut? Stress disrupts the balance of neurotransmitters in the gut, causing abnormalities in intestinal peristalsis and increasing intestinal mucosal permeability, which can trigger inflammatory responses. It can also adversely affect the gut microbiome, causing problems throughout digestive function and the immune system. All these processes act in combination, causing us to experience gastrointestinal symptoms when stressed. Your stomach is not merely a pouch that holds food, but a responsive organ that sensitively detects and reacts to emotional changes.