What are the symptoms of cancer of the esophagus or stomach?

Difficulty swallowin: Cardinal sign of esophagus cancer, weight loss. Associated with alcohol and smoking. Stomach cancer can begin as an ulcer, with heart burn, indigestion, belching, unusually vomiting blood, but slow ooze can lead to anemai, fatigue, weight loss.

Yes: Concur with others. This link may be useful for you: http://www.Cancer.Net/cancer-types/esophageal-cancer/symptoms-and-signs.