It been 5 months for me and I'm almost over L covid (vaxxed, boosted, paxlovid). I have celiac so already have a gluten free/minimal processed food diet. I don't have allergies so histamines are not a problem. I got a double cytokine storm in early March from getting glutened and covid at the same time. Post-covid symptoms were mostly fatigue and heart trying to break its way out of my chest. It has mostly been a slow gradual improvement in which I can gradually ramp up exercising and such with lots of rest breaks. Oddly, I got a shingles vaccine at the end of June that wiped me out for more than two weeks. After recovering I noticed my covid symptoms had decreased. I wonder if my immune system targeting the vaccine distracted it from any nasty covid bits wandering around my system. I guess time will tell. With covid it is important to eat well, avoid stress, get enough sleep and rest, and be nice to yourself. Find something good to do every day to break away from its grip.