What is the difference between irritable bowel pain and stomach ulcers?

Symptoms of stomach ulcers, irritable bowel 

Abdominal gas                             Few, many, and annoying

Pain related to food            Food relieves pain Food increases pain

fasting                                    Increases pain relieves pain

Nervous tension                     A little more pain A lot more pain

Sleeping                                    It does not relieve the pain relieves the pain

antacids                  Pain relief has no effect