If a patient exhibits mitral stenosis along with nausea and vomiting, it is possible that there is an overproduction of stomach acid, leading to symptoms like acid reflux, nausea, and vomiting. This condition might be due to gastrointestinal congestion caused by mitral stenosis, resulting in excess stomach acid under stress. In terms of treatment, it is advisable to recommend medications that suppress stomach acid secretion early on to alleviate the current symptoms. As for treating mitral stenosis, employing cardiotonic and diuretic therapies to improve heart function can help relieve symptoms. Regular hospital visits for cardiac ultrasound are still necessary to monitor the condition.