This involved whole days alone spent thinking about someone killing him. ‘I started seeing a therapist because of some like quite extreme, weird s**t that was going on in my work life in the end ...

Thirty-five minutes after that, Ratcliffe, the CIA director, wrote, “A good start,” which Waltz followed with a text containing a fist emoji, an American-flag emoji, and a fire emoji.

This was May 2007 and I was still in my early 20s. I just kept thinking to myself that I couldn’t have a brain disease. I was a mum – I didn’t have time. The first few symptoms ...