There are several weeks in each year when my productivity drops to zero because of hay fever. I basically can't think about any productive solution for this problem.
I am a programmer. It's not just about my job, I also can't concentrate on anything else in my life and make mistakes that result in loss of e.g. money or change of behaviour. I do try to take a spray for hay fever and the intensity of it is reduced but I still can't concentrate on anything like a normal person can. I feel like my mind is flying in the air and even after 8 hours of sleep, I feel very tired.