Twitter is one of the most famous online social networking services, with an
estimated 310,000,000 monthly visitors and 500 million users worldwide [5]. Within a
character limit of 140, it allows its users to post their thoughts and opinions, and gives its
registered users the privilege to read and comment [6]. Twitter provides its users a
platform to converse on almost every topic known to man, and thus, people started
discussing their health intentionally or unintentionally as well. This has intrigued many
researchers to look into the most common diseases people discuss and the scope of the
possible diagnosis virtually.