In a few months, you seem to get used to living with all these strange things, and your loved ones are humbled, and then HE comes - PMS or pre-marathon syndrome. This thing often accompanies the taper period, which begins 2-3 weeks before the marathon. Someone becomes gloomy or psychotic, someone falls into social phobia, someone panics "everything is lost, I can't run anymore", someone practices particularly severe forms of perversion in the form of a marathon diet. And so on. Personally, I still traditionally have a toothache, it always goes away in the morning before the start. All this is reminiscent of the legendary PMS in the original - when you understand everything, but it is not very possible to control the reactions of the nervous system.