For Laura Hummersone, whose 19-year-old son Harry has the condition, the performance had an emotional impact on them. “That’s what Tourette’s is like to live with.”Ms Hummersone said she was particularly struck by how much the crowd supported Capaldi. “So his performance was amazingly powerful.”The “powerful” performance also had an impact on 11-year-old James Craven, who was formally diagnosed with Tourette’s on Friday. James Craven with the letter he wrote for Lewis Capaldi (Kate Craven/PA)“We had a little celebration”, she added. Ms Craven said she hopes Capaldi’s performance raises awareness for Tourette’s.