My PANDAS 5-y.o. son's OCD manifests itself by him withholding poop for several days. Very irregular poop timing - sometimes can go several days in a row, and other times, will withhold for several days. When he withholds, he is (even) less attentive in school, and won't participate, or communicate... will sit on the toilet for hours, and protest (vigorously) an enema. Using Miralax, which seems to do little to nothing, and same with Inositol these days. It's wasting so much time and driving me batty!! Any suggestions? Talking this through w/him feels like talking to a wall.