Signs and symptoms of chemo brain may include the following: 
Being unusually disorganized
Confusion
Difficulty concentrating
Difficulty finding the right word
Difficulty learning new skills
Difficulty multitasking
Feeling of mental fogginess
Short attention span
Short-term memory problems
Taking longer than usual to complete routine tasks
Trouble with verbal memory, such as remembering a conversation
Trouble with visual memory, such as recalling an image or list of words
