That Uncertain Feeling is a 1941 American comedy film directed by Ernst Lubitsch and starring Merle Oberon, Melvyn Douglas and Burgess Meredith.
The screenplay by Walter Reisch and Donald Ogden Stewart was based on the 1880 French play Divorçons by Victorien Sardou and Émile de Najac.
At the suggestion of one of her friends, Jill Baker visits psychoanalyst Dr. Vengard for her intermittent hiccups, which appear when she gets nervous or irritated.
In Vengard's waiting room one day, Jill meets a very odd and individualistic pianist, Alexander Sebastian.
Jill and Larry get back together, and her hiccups vanish forever while a disgruntled Alexander gathers his belongings and leaves.