@kat_92, hang in there! I was never diagnosed with it but there's a possibility I unknowingly had it very early on (one of my doctors speculates I did), in the earliest days of COVID, a few months before all the lockdown and masks and things began, and it was NO FUN.
Maybe take high dose Vitamin D3 and K2 and magnesium to knock it out. I wish I had known that back then. Batch @xxxcan tell you more, but also I just read a book on Vit D that says it can knock out many illnesses when taken in high doses.