CNN New Day December 8, 2014 12:40:00
President obama made an unscheduled visit to walter reed hospital over the weekend. according to white house and his doctor, the president had symptoms of a sore throat over the past couple of weeks. now doctors determine that has been caused by acid reflungs. let's bring in senior medical correspondent dr. sanjay gupta. it sounds garl gnarlily. why would it cause a sore throat? >> first of all, acid redplux is a fairly common condition. a lot of people describe it as heartburn, they have acid that gurgles up, if you will, into their esophagus and their chest. typically you have these sfi