What are Main symptoms and sign of stomach ulcer? And what is the epidemology?

Ulcer. With stomach ulcer the pain gets worse with food, with small intestine ulcer the pain is worse while hungry and in the middle of the night. The most common causes of user is H Pylori infection, Non Steroidal Anti Inflammatory medications like Motrin, Smoking and Alcohol.
Homework. Physicians do not do patients' homework. Please read the chapter and answer the questions in your own words.