Interoception in Practice: The Gut-Brain Connection.

Tony is a five and a half-year-old boy who has been a patient in your primary care practice since he was adopted at birth. He has been treated by a child and adolescent psychiatrist for behavioral concerns starting at age 3 years and has been diagnosed with autism spectrum disorder, attention-deficit/hyperactivity disorder (ADHD) combined type, anxiety disorder, and insomnia. He presents today with complaints of repeated emesis and refusal to eat or drink over the past 2 weeks and is now dehydrated.