I think i have a ulser.can you tell me the singns.and if i do have one what can i do to get rid of it?

Pain, dark stools: Pain in the area below the notch where the ribs end is often associated with gastric ulcers. This pain can be referred to the shoulder. If the ulcer is bleeding, dark and tarry stools are a sign of a bleeding ulcer. Sometimes, people mistake cardiac, or heart, pain for the pain of indigestion. See your doctor if it is associated with exercise, exertion or stress, if you smoke, orhave heart disease.