After nearly a month of severe abdominal (epigastric) pain, loss of appetite, weight loss, nausea, and vomiting blood, I finally saw the GI doctor yesterday. He said he firmly believes it is an ulcer and started me on ulcer-relieving medications. Then he said he wants to scope me on the 20th. Is this really necessary? How is a scope going to change the treatment at this point? I can't really afford it - but will it harm anything if I skip it?