Seek help from cancer support groups as they might have a few ideas as to how to deal with the changes that you might see. You also need to be prepared for how treatments and cancer in general will affect your daily activities. You might feel tired or that you don't want to eat anything. There are times when you might feel sick and don't want to get out of bed. These are often the side effects seen with radiation and chemotherapy instead of just with the cancer unless the cancer has started to spread to other areas of the body.