1 / 5Sometimes loss of appetite can happen due to poor digestion, but if you facing this problems on regular intervals then, it can be sign of colon cancer.2 / 5Facing problems in consuming oxygen is normal it can happen because of fast running, climbing or lifting heavy objects, but if you feel tired and short of breath even after not doing any physical exertion, then you should get checked as soon as possible.3 / 5Cold and Cough is normal you can face it because of whether changes but if the problem is regular then it can be sign of asthma or cancer.4 / 5If you have a wound on any part of your body and it is not healing for a long time, then it is better to tell your doctor. Otherwise it can take the form of a major disease.5 / 5If you are having any type of bleeding such as in defecation, urine or sputum, then be careful. Even if it is not cancer, but it is a sign of your health getting worse.