With the five-and-under demographic monopolizing what little open conversation exists today regarding urine, feces and flatulence, there has been no opportunity for adults to just … let it out. Authors Josh Richman and Dr. Anish Sheth of “What’s My Pee Telling Me?,” the much anticipated sequel to “What’s Your Poo Telling You?,” are hoping to open up a new line of communication between medical experts and those of us who are looking for information outside of the doctor’s office about what’s happening inside our bathrooms.