Dr Leonard Weinstock from St Lois in Missouri, helps patient with GI Issues and other Autoimmune Conditions. Check out gidoctor.net. Dr. Weinstock of St.Louis, Missouri first studied Clinical Pharmacology before going into Internal Medicine. His greatest interest is in IBS (Irritable Bowel Syndrome) and autoimmune conditions. He gives excellent descriptions of many conditions like POTS (Postural Orthostatic Tachycardia Syndrome), MCAS (Mast Cell Activation Syndrome), SIBO (Small Intestinal Bacteria Overgrowth), and RLS (Restless Leg Syndrome). His explanation of the brain-gut connection is compelling and easy to understand. He utilizes LDN to increase endorphins that help reduce inflammation.