Jessica Simpson had to seek medical attention after suffering from a possible stomach ulcer. The THESE BOOTS WERE MADE FOR WALKIN' star was seen leaving a Beverly Hills, California medical clinic on 19 May (06). A source close to the singer tells the US edition of OK! magazine she was seeing a physician and undergoing tests to confirm whether or not she has an ulcer. Simpson is back in the studio working on her next album and is in the middle of a divorce battle with estranged husband Nick Lachey.