Wht Causes Mucus Filled, Smelly, Soft Stools Post Treatment For Mono

I have had some issues using the restroom for the past two weeks and it has only seem to worsen. currently i have had a extreme amount of mucus in my stool it is clear yellowish color and has an odd smell more recently restroom breaks are urgent i cant hold it in and no stool is with the mucus sometimes there is very soft stool like diarrhea but not to that extreme. i am 21 years old and have no known allergy to food other than milk sometimes if i drink to much milk my stomach will get upset.i recently got over mono and the doctors had me on pain killers steroids and antibiotics the symptoms started a week after i stopped taking my medication. i do not have medical insurance and that is why i am here