Lower abdominal discomfort nausea and diarrhea

Kyle is a 58-year-old man who is experiencing lower abdominal discomfort nausea and diarrhea lasting 2 days. He thought he had eaten something that “disturbed his stomach” but since this has lasted so long, he is afraid it’s something serious.
1. As you obtain a history from this patient what differential diagnoses are you considering. Give rational for your choices.
2. Discuss the pathophysiologic relationship between nausea and vomiting?
Three days after Kyle’s initial visit his labs confirmed a diagnosis of cirrhosis.
3. Discuss the pathophysiologic relationship between cirrhosis and portal hypertension.