I was diagnosed with ADHD when I was 19, in December 2016. The point at which it occurred to me that I might have ADHD was when I realised that my exams for the first year of my undergraduate degree were in a couple of weeks time, and that when I glanced at the questions in exam past-papers, I had basically no idea what they meant. This was a familiar feeling - a year earlier, during my A-levels, I took a philosophy exam on John Stuart Mill’s