Clostridioides difficile (C. diff)
Clostridioides difficile, or C. diff, is a bacterium that can cause gastrointestinal symptoms, like nausea, watery diarrhea, stomach pain and stomach cramps that may be severe.
Diverticulitis
Diverticulitis is when pockets form in the colon wall and become infected or swollen causing pain, cramping, diarrhea, constipation or fever.