<s>[INST] My friend is a veteran and is experiencing severe nausea and throwing up. He has pain in his upper abdomen and has been laying on my floor for about three hours. I tried to get him to go to the doctor but he can't get up. we live in a rural area and is difficult to get medical help here. [/INST] Hello!Thank you for the query.Upper abdominal pain and vomiting can be caused by stomach issues like inflammation or peptic ulcer. If the pain radiates to the back, gallstones or pancreas can be the reason. If he has lost some weight recently, stomach cancer should be also ruled out.I suggest your friend to visit a doctor, have blood work, abdominal ultrasound. If no gallstones will be present, gastroscopy should be next.In a meanwhile he should avoid fatty foods, spicy foods, alcohol, coffee, chocolate.Hope this will help.Regards. </s>