’That’s rigors,’ observed my doctor as I sat, shaking, in her consulting room. Rigors, she explained, is an episode of shivering and feeling cold while your body temperature rises above normal. The fever then makes you overheat and you sweat profusely.
My temperature, it turned out, was 38°C and, more alarmingly, my heart rate was 126bpm. It was March 2021 and I had been ill for a week,
