Is It Lyme Disease? Unexpected Symptoms That May Be Missed

UNEXPECTED LYME PRESENTATIONS?
WHEN SYMPTOMS DON’T FIT THE TEXTBOOK

Lyme disease does not always look like a rash, fever, or swollen knee.

Sometimes it begins with symptoms that seem unrelated—foot pain, dizziness, palpitations, vision changes, tinnitus, or unexplained fatigue.

That is why Lyme disease can be missed when clinicians rely only on textbook presentations.

Quick Answer: Lyme disease can cause unexpected symptoms involving the nervous system, joints, heart, vision, balance, mood, and autonomic function.

Clinical Insight: When unexplained symptoms occur in patterns—especially with fatigue, migratory pain, neurologic symptoms, or tick exposure—Lyme disease should remain part of the differential diagnosis.

For a broader overview, see the Lyme disease symptoms guide.

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Case Example: Unexplained Foot Pain

One patient experienced severe foot pain, even when walking to the bathroom.

A podiatrist diagnosed plantar fasciitis. He tried icing, NSAIDs, stretching, shoe inserts, iontophoresis, and cortisone injections.

Despite these treatments, the pain persisted.

But the foot pain was not his only symptom. He also had:

• exhaustion
• poor sleep
• impaired concentration
• neck and back pain
• mood changes
• palpitations and lightheadedness
• migratory pain
• sensitivity to light and sound

After treatment for Lyme disease, his foot pain and other symptoms resolved.

This case illustrates why isolated symptoms should be interpreted in context.

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Expected Lyme Disease Presentations

Some Lyme disease presentations are well recognized, including:

• erythema migrans rash
• Bell’s palsy
• neurologic Lyme disease
• neuropsychiatric Lyme disease
• POTS and autonomic dysfunction
• PANS-like symptoms in children
• Lyme carditis
• Lyme arthritis

These presentations are important—but they do not describe every patient.

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Unexpected Lyme Disease Symptoms

Some patients present with symptoms that are less commonly recognized as Lyme-related.

These may include:

• foot pain or thumb pain
• intermittent blue color of the hands or feet
• distorted vision or floaters
• uveitis
• atypical seizures
• TMJ pain
• tinnitus
• movement disorders
• ALS-like or MS-like presentations
• Parkinsonian symptoms
• dementia-like symptoms
• gastroparesis
• fibromyalgia-like pain
• ME/CFS-like fatigue
• anxiety, depression, OCD, or ADHD-like symptoms

These symptoms do not prove Lyme disease—but they may warrant evaluation when they occur with the right clinical pattern.

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Why Unexpected Lyme Symptoms Are Missed

Lyme disease is often missed because symptoms may:

• shift over time
• come and go
• affect multiple systems
• mimic other conditions
• occur without a known tick bite or rash

This reflects why Lyme disease tests the limits of medicine.

A short bridge: when symptoms do not fit one specialty, patients may receive multiple labels instead of one unifying explanation.

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The Challenge of Diagnosis

It can be difficult to determine whether Lyme disease is the cause of unusual symptoms, especially when patients have multiple diagnoses.

Conditions such as MCAS, EDS, MALS, mold sensitivity, SIBO, fibromyalgia, and chronic fatigue may coexist or overlap with Lyme-related illness.

The key is not to assume every symptom is Lyme—but also not to dismiss Lyme when the pattern fits.

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Clinical Takeaway

Lyme disease can present in unexpected ways.

When symptoms are unexplained, multisystem, fluctuating, or resistant to standard treatment, Lyme disease should be reconsidered—especially in patients with possible tick exposure.

Unexpected symptoms deserve careful investigation, not automatic dismissal.

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Frequently Asked Questions

Can Lyme disease cause foot pain?
Yes. Lyme disease may contribute to nerve, joint, or soft tissue pain, including pain in the feet.

Can Lyme disease mimic other conditions?
Yes. Lyme disease can mimic neurologic, rheumatologic, psychiatric, and autonomic disorders.

Do unexpected symptoms prove Lyme disease?
No. They should be interpreted in context with exposure history, symptom pattern, testing, and clinical evaluation.

Why is Lyme disease often missed?
Because symptoms may fluctuate, overlap with other illnesses, and occur without a remembered tick bite or rash.

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Dr. Daniel Cameron, MD, MPH
Lyme disease clinician with over 30 years of experience and past president of ILADS.

Symptoms • Testing • Coinfections • Recovery • Pediatric • Prevention