2. Dull Ache
While the burning sensation is one kind of pain that can be caused by ulcers, another is a duller ache. This is felt in the stomach and is caused generally by the irritation and swelling that surrounds the ulcer.
You again might find that this is worse at certain times, such as when you have just eaten or when the stomach is empty and thus there is less in between the ulcer and the stomach acids.