I get really bad brain fog. It’s like I wake up and feel my IQ has halved. Simple problems seem gigantic, everything is a hassle. On top of that - general fatigue, like walking up the stairs or running a bit gets me all breathless. Even though I should be familiar with it by now, I always keep thinking: “is it COVID?”

Then one day it rains and the pollen subsides and suddenly I can run and think and feel like myself again.