[mjp]

Differential diagnosis of cough, a simple mnemonic is GREAT BAD CAT TOM.

(GERD (reflux), Laryngopharyngeal Reflux (LPR), Rhinitis (both allergic and non-allergic) with post-nasal drip (upper airway cough syndrome), Embolism, e.g. PE in adults, Asthma, TB (tuberculosis),

Bronchitis, pneumonia, pertussis, Aspiration, e.g foreign body in children, Drugs, e.g. ACE inhibitor,

CF in children, Cardiogenic, e.g. mitral stenosis in adults, Achalasia in adults, Thyroid enlargement, e.g. goiter,

"Thoughts" (psychogenic),Other causes, Malignancy, e.g. lung cancer in adults).

[Salvey]

"Thoughts" (psychogenic)

I've long thought that; her subconscious must be roiled as a result of dealing with the lies, greed, deception and anger. It erupts outwardly as a coughing fit in her case.