Histamine and Long COVID
I never had Long COVID, so this is just an idea of mine. I guess a lot of symptoms described might be «maybe» lessened by a diet. This pandemic was a very stressfull happening for many people. If I would suffer from Long COVID, I would try to make changes in diet. A lot of symptoms sound like a new found sensibility which leaded to overstimulation. Brain Fog, tiredness and anxiety can be lessened by foods low in histamine, less stress and a proper lifestyle and sleep routine. Also sattvic diet might give release here – it's worth a try, I guess.