You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is A 50 year-old chronic alcoholic male patient, after a large binge of alcohol, presented to the emergency depament in subconscious state. He vomited several times, few of them mixed with blood. He had a history of hea burn and dyspeptic symptoms for past few tears. On physical exam, he had a temperature of 102degF, a pulse of 110, respiratory rate of 20 per minute and a blood pressure of 90/60. On physical examination there was abdominal guarding and tenderness. A plane erect chest X-ray reveals air under diaphragm. Probable diagnosis is and explain in detail?