“ headaches, delirium and mental fog.” Had all of that and then some. Started coming down with it 23 days ago. Had to use a walker for a couple days just to go to the bathroom I was so unsteady. The only underlying condition I have is being overweight, otherwise pretty health for 67. Still have a cough, a bit weak and tire easily. The strange thing is I had the exact same illness 6 years ago and just thought it was a bad case of the flu.
You may be on to something, there.