Why is it that you had a surgery for the kidney
stone and your colon
is impacted? You probably have an acute intestinal obstruction
or absent bowel movement for long duration.
Yes, olive oil would help too. In my view, you must get back to the doctor who operated on you and discuss about the same with her/him.
I strongly feel that you would do better with a bowel enema
. Whatever be the case, get back to your treating doctor or the ER at the earliest, so that you get some relief from your pain.
Get well soon.