Parkinson's Symptom Directory
Parkinson’s disease affects far more than the symptoms listed here.This directory currently highlights the most common and impactful symptoms to help you get started. Additional symptoms and guides are being added over time.If you are experiencing a symptom not listed here, it does not mean it is unimportant or unrelated to Parkinson's.
Why Parkinson's Symptoms Happen
Parkinson's symptoms are not random—they are caused by changes in how the brain signals.Understanding dopamine and how it affects the brain can help explain why symptoms feel unpredictable and why they can change throughout the day.
This directory includes 18 common Parkinson’s symptoms. Each topic includes a brief explanation and downloadable patient and caregiver guides.📄 Patient Guide | 👥 Caregiver Guide | 🎥 Video (when available)
Looking for what a symptom feels like in real life?
Parkinson's symptoms affect both movement and many other body systems. Select a symptom or a category below to learn more.
Tap a Category to learn more
Constipation
Digestive slowing is very common n Parkinson's and can affect medication absorption and overall health.
🎥 Watch a quick overview video
Digestive & Autonomic Symptoms
Parkinson’s disease affects more than movement. It can also disrupt the autonomic nervous system, which controls automatic body functions like digestion, blood pressure, sweating, and bladder function.
🎥 Watch a quick overview video
Cognitive Slowing
Many people experience slower thinking or difficulty procession information quickly.
🎥 Watch a quick overview video
Fatigue
Fatigue in Parkinson's is more than feeling tired. Many people experience a deep physical and mental exhaustion that can appear even after adequate sleep and can affect concentration, motivation, & daily activities.
🎥 Watch a quick overview video
Medication Consistency Issues
Some people with Parkinson’s notice worse symptoms when their pharmacy switches the manufacturer of carbidopa/levodopa (Sinemet). Even though generics contain the same active medication, differences in inactive ingredients or formulation can affect how the medication feels for some patients. If symptoms suddenly worsen after a refill, check whether the manufacturer changed and discuss it with your neurologist and pharmacist.
🎥 Watch a quick overview video
Hallucinations
Hallucination in Parkinson's disease usually involve seeing things that are not actually present, such as people, animals or shadows. They may occur due to changes in brain, sleep problems, or medication effects.
Movement Symptoms
Balance Problems
Changes in posture and coordination can increase fall risk as Parkinson 's progresses.
Freezing of Gait (FOG)
A temporary inability to start or continue walking often triggered by doorways, turns, or stress.
🎥 Watch a quick overview video
Dyskinesia
Involuntary movements that may occur as a side effect of Parkinson's medication.
🎥 Watch a quick overview video
Tremor
Tremor is a common symptom of Parkinson's disease and usually appears as rhythmic shaking in the hands, fingers, or limbs. It is often most noticeable when the body is at rest.
🎥 Watch a quick overview video
Rigidity
Rigidity is a common movement symptom that causes muscles to become stiff or tight. This stiffness may lead to pain, reduced flexibility, & slower daily activities such as getting dressed, turning, or walking.
Anxiety & Depression
Mood symptoms in Parkinson's are often neurological—not just emotional.These symptoms can change throughout the day and may not match what's happening around you.
🎥 Watch a quick overview video
Vision Changes
Why Parkinson’s Can Affect Your Vision (Even if Your Eyes Are Healthy)”Dry eyes, blurred vision, and difficulty focusing can occur due to Parkinson's and medication effects.
🎥 Watch a quick overview video
Sleep Disorders & Insomnia
Sleep challenges in Parkinson's can include insomnia, REM Sleep Behavior disorder, restless legs, and frequent waking.
Insomnia & Sleep Disorders
Understanding sleep problems in Parkinson's disease, including insomnia, nighttime waking, vivid dreams, and daytime fatigue.
🎥 Watch a quick overview video
© 2026 TooShaky
Disclaimer: This patient education resource was created by Dawn Howard, Parkinson’s Advocate & Neurological Health Educator, through TooShaky.org, to support individuals newly diagnosed with Parkinson’s disease. Content is informed by lived experience, patient education best practices, and information from established medical, nonprofit, and educational sources. Drafting, editing, and organizational support were assisted by ChatGPT (OpenAI) as a writing and language tool, under the direction and review of the author. Educational content and references are drawn from sources including, but not limited to: Parkinson’s Foundation, The Michael J. Fox Foundation for Parkinson’s Research, American Parkinson Disease Association (APDA), Davis Phinney Foundation, Mayo Clinic, Cleveland Clinic, PubMed, PMC PubMed Central, Peer-reviewed medical literature and clinical education resources. This material is provided for informational and educational purposes only and is not intended to replace individualized medical advice, diagnosis, or treatment. Patients should discuss all medical questions and care decisions with their healthcare provider. TooShaky.org does not provide medical care and does not establish a clinician–patient relationship.