How do you know when the lingering fatigue you feel after training is more than just the after-effect of a sensibly tough workout schedule? Here, in a post that could also be titled ‘One Girl and Her Idiotic Training Decisions’, I talk about my personal experience with overtraining/underperformance syndrome. It’s long, but read to the end for expert advice from applied sport scientist, Dr Barney Wainwright, on how to spot and treat the symptoms of overtraining.