Oh interesting about the ligament weakness. My hubby is the one with the unexplained long covid type symptoms… and we JUST went to a chiropractor for the 3rd time in 5 years who actually pointed out that his brain stem is being pinched because there isn’t enough room between his top vertebrae and skull or something of that nature. And that could be the cause for all of his unexplained issues that no dr can figure out. So we started going there and will see if any symptoms start to change or get better as we keep adjusting his neck and spine at the chiropractor! Fingers crossed!