My stools tend to be on the looser side. some days pencil thin other days about 2-2.5 cm in diameter. is that someonething worrisome? i

Not sure.: It is not unusual for stools to vary in width and consistency, but if you have noticed that this is a change in your bowel habits, then you should have an evaluation done. Also, if you have not had a colonoscopy before, you should have that done regardless of your stool changes, given your age, to help prevent the possibility of colon cancer. Good luck.