Some reviewers of the film Goodbye Christopher Robin are saying that A.A. Milne had post-traumatic stress disorder. Yes, he was at the front during the Battle of the Somme; in August 1916 he was a signals officer there, and worked in no man’s land. But PTSD didn’t send him home. He was brought down by trench fever (bartonellosis). A bacterial infection spread by body lice (not those of the head or pubes), it causes a high fever, which repeats itself a few times every five days. It doesn’t kill, but sometimes leaves its victims feeling weak for many months. This happened to Milne. After being invalided home, he lost weight and developed fatigue, said to be caused by ‘overwork’, but much more likely due to the persistent effects of Bartonella quintana. In the early autumn of 1917 he spent three weeks at Osborne House on the Isle of Wight, then a convalescent hospital for officers.