Brief Answer:
Details Required

Detailed Answer:
Hello
This is difficult to diagnose accurately about you problem with limited information.
This required a details analysis of your case along with investigation.
I would request you either visit any good Gastroenterology or share the details of your complain including all diagnosis and blood report.
That will help me to analyse you case and then only i could suggest you the next line of treatment.
The common symptom in colon cancer are
1 Change in bown habit. Constipation / Diahorea
2 Rectal bleeding or blood in stool
3 abdominal pain cramp
4 Weakness
5 Weight loss

If you notice any above symptom then its time to start treatment without delay.

Meanwhile i am sharing a link read it carefully and compare your symptom
http://www.medicinenet.com/colon_cancer/article.htm


Advice CT Scan
Hope this is clear to you

In case of any query feel free to ask

Thanks
Dr Ratnesh

---

Brief Answer:
Followup

Detailed Answer:
Hello
This is serious condition and i would strongly suggest you to visit your physician for his opinion without delay.
Any delay in treatment may lead to some serious issue to your health.
You may be required some more test to confirm the diagnosis.

Hope this is clear to you.
In case f any query feel free to ask

Thanks
Dr Ratnesh

---