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.
Here are some of the common signs and symptoms of: 1  NO SYMPTOM AT ALL. 2  Diarrhea (that will not stop) that lasts for more than a few days, not just after eating Taco Bell. 3  Constipation (you canât âgoâ to save your life) that lasts for more than a few days. 4  Unintended or unexplained weight loss (or weight gain) 5  Vomiting.
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. Persistent abdominal discomfort, such as cramps, gas or pain.