Hypochondriacs in Jane Austen and Regency Medicine: Mrs. Churchill of Emma

Mrs. Churchill, Mary Musgrove, and other Austen characters are hypochondriacs. What did doctors believe about their malady and its treatment?

A Valetudinarian Old Man—Mr. Woodhouse in Emma

Was Austen's Mr. Woodhouse a hypochondriac, or an old man with valid concerns about everyone's health?