Re: What were your first symptoms?
With your symptoms there are a very many things that this could be. Yes cancer does share some of these symptoms, but there are many others that the doctor can check for that can quickly rule it out. In the end the best way to know is to get a colonoscopy, which will check inside your colon for whatever is causing your discomfort. The symptoms you are expressing suggest to me that you are likely suffering from either IBS or some kind of blockage. Blockages can be mechanical (i.e. something is stuck in there, like a bit of bone left in food, impacted stool, or anything else that has passed through your digestive tract and become stuck), or physiological. Physiological blockages could be a narrowing of the colon due to ulcurs, inflamation, polyps, or tumors. Again the only way to check for sure is to get checked by your doctor, but it doesn't sound like cancer to me. Here's hoping! Hope this helps.