Just read a post from GG regarding B12
I know that this forum has helped me so much . Using vits b12 , b complex as suggested has given me massive improvement in my symptoms.
When I heard mention of long Covid I wondered how much of the problem with this was already there with these people.
Much of our food , if believe, is poor in nutrition. Along with Vit D I think doctors should start learning about these precious vitamins. Fat chance though . No money in it ☹️