IC does not appear to have perceptible symptoms.[1]
Controversial publications from the 1970s and ’80s claimed that intestinal Candida overgrowth lead to a long list of ailments, including fatigue, GI discomfort, recurring yeast infections, arthritis, acne, migraine headache, and heart issues, although most of these claims have been debunked.[1]
IC may lead to diarrhea associated with antibiotics and irritable bowel syndrome with diarrhea (IBS-D), but more research is needed.