I adapted this from The Knockout Project - when I read it I cried - someone finally gets it.

The fog rolls in without notice. Some days, you wake up and it is there. On others, you are lulled into a false sense of security; you forget that it lurks, waiting to cover you in its confusion, emptiness, and uncertainty.
Yesterday was good. Today, I woke up and the fog was there. Simple tasks became monumental ones. Normal thought process became labored. You try to take those experiences and shove them far away someplace. You try to marginalize them and tell yourself that they don’t matter; that they’ll pass. But, they are scary. They make you wonder. Where you once felt strong and unbeatable, those experiences make you feel weak. I’m not quite sure what is happening to me.