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.
When tumours have grown to a large size they may cause a change in the frequency or the diameter of the stool. Common symptoms of colorectal cancer include: 1  A change in bowel habits (persistent constipation or diarrhoea lasting more than 3 weeks).2  Blood on or in the stool that is either bright or dark. 3  Unusual abdominal or stomach pains. 4  Unexplained weight loss. 5  Anaemia.hen tumours have grown to a large size they may cause a change in the frequency or the diameter of the stool. Common symptoms of colorectal cancer include: 1  A change in bowel habits (persistent constipation or diarrhoea lasting more than 3 weeks).