Natrum nitricum

Ears

Otalgia; the pain seems to be in the tympanum, in the evening; with warmth in the ear, coldness of the right concha, burning heat of the left, which extends beyond the temple.

Stomach and Abdomen

Sourish taste; sourish eructations.

Distended abdomen, with a feeling of heaviness in it, followed by emission of a quantity of wind and eructations.

Flatulence, with pressure in the pit of the stomach and under the sternum.

Painful retraction of the abdominal muscles towards the spinal column.

Stool and Anus

Constipation; the stool is discharged with difficulty, slow, and with the sensation after the stool as if the feces were still remaining.