So the biggest thing I had to figured out was all my allegeries. Fragrance is the biggest one, its in everything and I can’t be around it at all. It took 6 months to get rid of all of it and is a constant effort to keep out of my living space. I have met multiple other people who has this same allergy. Cutting gluten out of my diet also helped a lot. HEPA 13 air purifiers are a must. And these are the meds I’m currently on: Gabapentin 300mgx3 daily ALA 300mgx3 daily Tumeric 500mgx3 daily Benadryl liquid gels 25mgx3 daily Loratadine 10mgx1 daily Azelastine HCI 205.5 mcg spray 4 times daily Probotics 1x daily Bio-identical hormones to correct hormone imbalance I smoke tar free cigarettes for brain fog and nausea Microdose of psilocybin 400mg of fungal material 4 times a week for migraines and brain fog. Let me know if you have any questions. I know how awful it feels to have this with no end in sight.
By way of elimination, sorta like the fodmap diet but for environment factors. Symptoms that increase for everyone I have talked to are brain fog, neuropathy, lightheadedness. But yeah just remove the thing from your environment for some months then reintroduce it to see if you get worst. I highly suggest fragrance as a start as there are research studies showing it is common in people with post viral illnesses. You can also go an allergist and get a spot test done but it may not be conclusive.