How could I tell if I have an ulcer? I am frequently nauseated, especially on an empty stomach. I have recently discovered that milk and chocolate make the nausea much worse. I have vomited on two ocassions (two weeks apart) after evening meals, but have no other symptoms (fever, etc.). Vomiting helps but I usually do not feel better until the next day. Prior to vomiting the first time, I had an extreme case of heartburn the night before. I had been sick with a sinus infection the prior week and had taken a several ibuprofen throughtout that week, which probably caused all of this to start.