Pain behind the breastbone can have various causes, ranging in severity from 'worrying' to 'critical'. Finding the true cause means ruling out or confirming each possibility – in other words, diagnosis.
Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms. In order to diagnose pain behind the breastbone, we could:
Have you had an aching or burning sensation behind your breastbone (top-middle chest)?
Possible responses:→ Never had it / don't know
→ Probably had it/minor episode(s) now resolved
→ Major episode(s) now resolved
→ Current minor problem
→ Current major problem
Wheat has been known to be a cause of esophagitis, as have other hidden food allergens.