Hello Doctor, I dont know what wrong with my body. After I ate I throw off food. Also I feel full on the left side of my body, nausea , direa, and constipation. My whole body feel very weak. Hard to breath. So the doctor order CAT Scan of Abdomen of my whole body but they said everyting in my body look fine. My question is can a CAT Scan Abdomen detect cancer in my body. Such as stomach cancer, colon cancer, bladder cancer, pancrea cancer, gallbladder or any other cancer. Thanks for your help and have a nice day doctor.