@dag10 your son’s symptoms sound quite similar to mine. I am now almost 9 months out from 2nd Pfizer and am experiencing very slight improvement. I have tried so many things such as dietary changes without any real effect. I do take a few supplements and vitamins but I think more than anything the passage of time is the biggest thing giving me slow improvement. I am just so grateful it isn’t worse and doesn’t really keep me from doing what I want and need to do. But it has been an extremely frustrating and at times frightening experience. Best wishes for your son!