• Freezing:

  • ​Not explained by rigidity or bradykinesia 

  • Individuals will hesitate before stepping forward - he/she will feel as if his/her foot are glued to the floor

  • Is often temporary 

  • Can occur in very specific situations, but rarely happens when an individual is walking on stairs

  • Those with severe freezing cannot take a step

  • Increases a person's risk of falling foward

• Micrographia:

  • Shrinkage in handwriting (abnormally small and cramped)

  • Is a result of bradykinesia (difficulty in repetitive actions)

• Mask-like expression:

  • Individual's face is less expressive than usual

  • Caused by a decrease of unconscious facial movements due to a combination of rigidity and bradykinesia

• Unwanted accelerations:

  • Some individuals experience movements that are too quick

  • Occurs in speech and movement 

  • Those with rapid speech (tachyphemia) produce a rapid stammering that is very difficult to understand

  • Those with uncontrollabe acceleration in movement (festination) experience the increased risk for falling

• Stooped posture:

  • Tendency to lean forward

• Dystonia: 

  • Involuntary muscle contractions that cause abnormal and slow movements

• Impaired fine motor dexterity and motor coordination

• Decreased movement

• Akathisia:

  • An inner feeling of restlessness and a need to be in constant motion  

• Speech problems:

  • Softness in voice

  • Slurred speech

• Difficulty swallowing

• Sexual dysfunction

• Cramping

• Drooling

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