Rectum burns after i gave myself an enema- i still feel full . just had colonoscopy it was clean, am i really constipated?

See your GI: If colonoscopy was "clean" means both your colon was cleaned out of stool and clear to visualize well surface and it was clear of any abnormalities then you have rectal burning after giving yourself an enema then wonder if you injured yourself inappropriately administering the enema to yourself. Rectal burning can also occur from drinking dr pepper. Check back with GI who did your colonoscopy.