Finally went for my repeat CEA and other blood work today. I hope I clear this. If not, then it's back to CGH. Then perhaps FOBT, followed by colonoscopy?
And for all you know, it could be something else. CEA is most commonly used for colorectal cancer, but it is also for many other cancers.
Update: I cleared it. So the earlier result was probably due to some other insult to the body which I overcome.