A 60 year old male had a sudden fall in toilet. His BP was 90/50 mm Hg and pulse was 100/mm. His relatives reported that his stool was black/dark in colour. Further careful history revealed that he is a known case of hypertension and coronary artery disease and was regularly taking aspirin, atenolol and sorbitrate. The most likely diagnosis is:
Gastric ulcer with bleeding Acute myocardial infarction with cardiogenic shock Acute cerebrovascular accident Pulmonary embolism