• Early Symptoms:

  • Problems with an individual's olfactory system (loss of sense of smell)

  • Constipation 

  • REM behaviour disorder (sleep disorder)

  • Mood disorders

  • Orthostatic hypotension (low blood pressure when standing up - causes dizziness)

• Bladder problems

• Sexual problems 

• Excessive saliva

• Weight loss or gain

• Vision and dental problems

• Fatigue

• Depression

• Anxiety

• Skin problems

• Cognitive issues:

  • Problems with memory

  • Slow thinking

  • Confusion

  • Dementia

 

Source: http://www.pdf.org/symptoms_nonmotor_early