A woman was diagnosed with Tourette’s syndrome after she couldn’t help scrunching her face at her teacher.
Emily Bridges was 18 when she felt an "overwhelming lack of control" as her head "suddenly started jolting to the side" on the bus to college.
She initially dismissed the incident, but was forced to confront it when she started making a h iccup-like sound which developed into involuntary shouting and swearing.
