I am so sorry.
I get prickly when people say they "don't have that symptom but have you tried..." but I guess that's what this is for. The thing is, be assured you're not crazy or imagining things. Covid episodes are SO disorienting, or can be. I'm only commenting because your title was so plaintive! Nothing is wrong with you. Your body is Sick, not your willpower.
Try to remind yourself that you didn't ask for this, just like you have never "asked" for the flu! I wish there was a place to go for help. Try to find an immunologist or pCP who gets it and can help. But you're not imagining it, and its not YOU.