Pressure in rectum during/following recent bout of constipation. normal bm with some ball turds here and there. colon/rectal cancer? hemorrhoid?

Constipation: Common things being common, you are unlikely to have colon cancer or prostate issues at your age. Constipation is another issue, and i suspect you've still got it. Retained hard stool in your rectum may be causing your symptoms, or a hemorrhoid caused by straining. Try a laxative, lots of water, and adding more fiber to your diet.