Bewilderment

You lose the ability to comprehend your surroundings as your senses are drained away.
 
  Each point gives -1 on Wisdom Checks and Saves, and you lose Proficiency and Expertise in all skills based on an Attribute you choose
  When you have have no Proficiencies remaining , any further Bewilderment becomes Dementia instead.
 

Recovery

Reduce your Bewilderment by 1 each time you complete a Night's Rest.