Doctors will not admit or do much here is some suggestions,you need liquid iron, it absorbs slowly in the stomach but it will work, bring you out of that fog and fatigue. Take the liquid with EmergenC. The hair is affected being anemic , Natures Bounty Hair skin and nails Gummies helps take two morning and at night. I did not get Covid, I got the Covid bivalent m RNA vaccine and it made my blood dangerously abmormal where I needed a blood transfusion. Since I was a very healthy with no underlying conditions before the vaccine, I am very lucky to be alive.