Cancer patients may develop side effects during treatment, such as nausea, pain, fatigue, diarrhea, constipation, or shortness of breath. These symptoms may be due to the cancer itself, or due to treatments like chemotherapy drugs or radiation therapy. Doctors and nurses often ask patients about their symptoms, because an important part of cancer treatment is to make patients feel as well as possible. If patients do not feel well, the investigators may need to change the way the investigators are treating you or prescribe therapies that will decrease your symptoms. The best way to find out how you are feeling is to ask you directly.