Here is the matching for the diseases with their corresponding symptoms:
- a useless memory - (could be related to dementia or amnesia)
- believing that everyone is an enemy - Paranoia
- inappropriate emotional state - Bipolar disorder or emotional dysregulation
- inappropriate fear of something - Phobia
- inappropriate pattern of relating to others - Personality disorder (such as Borderline or Antisocial Personality Disorder)
If these need to correspond to specific diseases, please clarify, and I can specify further.