Write notes on Dysphagia, Dyspepsia and constipation.

Dysphagia : It is a difficulty in swallowing, most often associated with disease or disorder of the throat or oesophagus.

Dyspepsia : A form of indigestion often persistent, which may be due to irregular meal times and sometimes associated with anxiety and apprehension.

Constipation :It is a condition in which there is difficulty in emptying the bowels, usually associated with hardened faeces.