This is Dr. David
I'm glad you had a colonoscopy.
with colonoscopy, there is a big prep you take before the procedure to cause severe watery diarrhea to clean out the colon so the doctor can see inside of your colon wall
often times this affect from the prep can cause your bowels to move more quickly for several days to weeks after the colonoscopy has completed.
you can slow down your bowels and have larger bowel movements by eating more bananas and rice and cheese which can slow down the number of small movements you are having
eating more fiber and fiber supplements could help bulk up your stool.
taking a probiotic daily and also eating yogurt daily can help add good bacteria into your bowels as well
drinking more water and getting regular exercise can help your bowels.
I would try these methods and over time, I bet your bowels will return to being more regular
I don't think that something "happened" during the colonoscopy procedure which damaged your bowels to cause you to have small bowel movements with every urination
let me know if you have questions.