I had CAT scan a week ago and now wearing pad because of a loose bowel and having back pain

I suffer from bowel problems. Tried all kinds of laxitives and from dr as well. I had cat scan week ago.  I wear a pad because since having scan         I have loose bowel  and need a pad. I havent had bowels open normaly sice  a week ago .I dont feel that great also back pain. Anyone like this.