<unk>  is a term for the "woolly" sensation of a physical obstruction to clear thinking in the<unk> , often extended to apply in general to neurocognitive symptoms experienced by many people who suffer from diseases such as ME/CFS, fibromyalgia, amongst others.
Brain fog
Halitosis
Tinnitus
Color blindness
Anxiety
Cat eye syndrome
Fear of the dark
Computer vision syndrome