Symptoms of Parkinson's disease

Tremors: Trembling in fingers, hands, arms, feet, legs, jaw, or head.

Rigidity: Stiffness of the limbs and trunk, which may increase during movement. Rigidity may produce muscle aches and pain.

Parkinsonian gait: Individuals with more progressive Parkinson's disease develop a distinctive shuffling walk with a stooped position and a diminished or absent arm swing.

Postural instability: Impaired or lost reflexes can make it difficult to adjust posture to maintain balance.

Bradykinesia: Slowness of voluntary movement.