Blood clots, especially those that originate in the brain, can occur very quickly. If there are lots of veins around to adequately redirect blood flow, the clot will stop growing at a certain point and the body can accommodate it indefinitely. It may even disappear with time.
Signs and symptoms of colon cancer include: A change in your bowel habits, including diarrhea or constipation or a change in the consistency of your stool, that lasts longer than four weeks Rectal bleeding or blood in your stool
Some of the most common symptoms of advanced colon cancer include bloody stools, differences in usual bowel habits and chronic abdominal discomfort. Unintentional weight loss, changes in appetite and ongoing nausea can also be symptoms. Some individuals with colon cancer may also suffer from extreme fatigue.