Dementia symptoms vary depending on the cause, but common signs and symptoms include: Cognitive changes 
Memory loss, which is usually noticed by someone else
Difficulty communicating or finding words
Difficulty with visual and spatial abilities, such as getting lost while driving
Difficulty reasoning or problem-solving
Difficulty handling complex tasks
Difficulty with planning and organizing
Difficulty with coordination and motor functions
Confusion and disorientation
 Psychological changes 
Personality changes
Depression
Anxiety
Inappropriate behavior
Paranoia
Agitation
Hallucinations
