There is never a "clear cut" answer, especially in cancer. In this type of cancer in particular, symptoms also depend on whether it has spread to other parts of the body or not. Most common symptoms involving the colon are:
-- Abdominal pain (44%)
-- Changes in bowel habits (43%)
-- Loss of fresh blood from the colon or black tarry stools (40%)
-- Fatigue (20%)
-- Anemia (11%)
-- Weight loss (6%).

Metastatic disease symptoms
For about 20% of the patients, the diagnosis for colorectal cancer is concurrent with the presence of metastatic disease. Metastasis takes place through the lymphatic system, the blood vessels, by contiguous and transperitoneal routes. The most common sites for metastatic spread are the lymph nodes, liver, lungs, and peritoneum. Uncommon sites are the bones and the brain.

Metastatic disease symptoms are dependent upon the location of the metastases:
-- In case of liver metastases, a feeling of heaviness in the upper abdomen, pain in the right hypochondrium or jaundice (in advance disease) may occur.
-- Common symptoms and signs of lung metastatic disease are cough, pleural effusion, while hemoptysis and dyspnea are rarer.
-- In patients with "peritoneal carcinomatosis" abdominal pain and ascites may be present.

Home Remedies For Colon Cancer
#1 Turmeric
any of the ailments can be caused by natural turmeric directly. It can be used in various ways; most people use it by boiling it in milk and then drinking it. It is an ingredient of turmeric that helps in curing colon cancer- curcumin. If you take some form of curcumin regularly, the growth of cancer cells would definitely come to a halt. This is the best remedy to fight cancer and a good thing is that turmeric is available in homes most of the time.
 
#2 Alkaline Water
Sometimes, it is malnutrition that is a major cause of colon cancer. The colon might be damaged by colon cancer severely and it might be painful as well. Alkaline water works magically to help colon of humans recover from the damage. A poor lifestyle might be a cause of colon cancer but if you get to know about the disease at an early stage, it is better to take steps to cure it. Remember, it is not possible to bottle alkaline water, you have to prepare fresh every time, otherwise, it might lose its charge.

#3 Ginger
Another home remedy for colon cancer is ginger. When a person is suffering from colon cancer, he/she might feel acute burning sensation in the colon cells, with the anti-inflammatory properties of ginger. It would provide relief from that burning sensation. The ginger root supplements are believed to cause side effects. Hence, it is advisable not to use these supplements.

#4 Garlic
You can cure colon cancer by just shifting your old lifestyle to a new one. As garlic has sulphur compounds in high amounts, it would block the carcinogens from entering the body in any form, and hence, cancer would automatically be cured. But this wouldn’t work forever. Ultimately, it would lose power. What you can do is to try garlic for some time, and then continue using it till medical treatment is completed. Raw garlic could also be taken to avoid colon cancer.