The diseases you might not know you have. Dr. John Cmar, infectious disease specialist at Sinai Hospital, discusses a variety of medical problems that often go undiagnosed and untreated, such as diabetes, the gluten allergy, celiac disease and the human papillomavirus. We’ll also take a look at autoimmune inflammatory vasculitis, the disease that caused the death last week of comic actor and producer Harold Ramis at age 69.