Pins, Needles and Pebbles in Your Socks: The Strange Language of Peripheral Neuropathy

“I keep checking my socks because it feels like there’s something bunched up underneath my toes.” That’s something I hear from patients more often than you might imagine.

Others describe walking on pebbles, having insects crawling across their feet, or feeling as though their socks are wet, even though they’re perfectly dry. Some complain of burning feet that become particularly bothersome at night. Some mention electrical zaps, buzzing, prickling or the peculiar sensation that there’s a layer of cardboard between their feet and the floor.

Then there’s the seemingly contradictory complaint: “My feet are numb, but they hurt.” It sounds impossible. How can something hurt and be numb at the same time? Welcome to the strange language of peripheral neuropathy.

When Your Nerves Become Unreliable Messengers

Your nervous system is essentially your body’s extraordinarily sophisticated communication network. Sensory nerves constantly transmit information about pressure, temperature, vibration, pain and body position back toward the spinal cord and brain. Normally, this happens so effortlessly that you don’t give it a second thought. You don’t need to look at your feet to know they’re touching the floor.

But when peripheral nerves become damaged or dysfunctional, those messages can become distorted. Imagine having a phone conversation with a terrible connection. Sometimes information doesn’t get through at all. Other times you hear static. Occasionally you hear something that wasn’t actually said. Neuropathy can behave similarly.

When sensory information is lost, you may experience numbness or reduced ability to feel temperature, vibration or touch. Doctors sometimes call these negative sensory symptoms because normal sensation has disappeared. But irritated or damaged nerves may also generate abnormal signals. That’s where we get positive sensory symptoms: burning, tingling, prickling, buzzing, electrical shocks and other sensations occurring without an obvious external stimulus. So yes, strangely enough, your feet really can be numb and painful at the same time.

“It Feels Like I’m Walking on Pebbles”

Consider someone we’ll call Susan. Susan keeps feeling as though there’s a wrinkle in her sock beneath the ball of her foot. She takes off her shoe, straightens the sock and puts everything back on. The wrinkle is still there. Eventually she realizes there never was a wrinkle.

What Susan is experiencing may be paresthesia or dysesthesia: altered sensory information being interpreted by the brain as something occurring in the foot. Another person might describe walking on cotton wool. Someone else says the floor feels strangely soft. Another insists their toes feel swollen even though they look perfectly normal.

These descriptions aren’t silly. In fact, they’re useful clinical information. The words people use to describe their symptoms can provide clues about which sensory pathways aren’t functioning normally.

Why Does It Often Start in the Feet?

Many forms of peripheral polyneuropathy are length-dependent. Put simply, the longest peripheral nerves are often affected first. Since some of the longest nerve pathways travel all the way to your toes, symptoms commonly begin there before gradually progressing farther up the feet and legs. That’s why clinicians sometimes refer to a “stocking” pattern of sensory loss.

If the process continues, a person may gradually lose more than comfortable sensation. They may also lose some protective sensation. Imagine stepping on a small stone inside your shoe. Most of us immediately stop and shake it out. But what if you couldn’t feel it properly? Or imagine getting into a bath without accurately sensing how hot the water is. That’s when numbness becomes more than an annoyance.

And Then There’s Balance

Your eyes aren’t the only things telling your brain where you are in space. Sensory receptors in your muscles, joints and other tissues continuously provide information about body position, a system broadly associated with proprioception.

Try standing comfortably and then closing your eyes. You have just removed one major source of information your brain uses for balance. Normally your nervous system compensates remarkably well. But if sensory information coming from the feet and legs has also become unreliable, particularly in more advanced neuropathy, balance can become increasingly difficult.

This helps explain something else I sometimes hear: “I’m fine during the day, but I’m much less confident walking around the house in the dark.” That’s worth paying attention to.

But Here’s the Bigger Question: Why?

This may be the most important part of the conversation. Peripheral neuropathy isn’t one disease with one cause. Diabetes is a well-known cause, but neuropathy can also be associated with vitamin deficiencies, certain medications and chemotherapy, alcohol exposure, autoimmune and hereditary disorders, infections and other medical conditions. Symptoms resembling neuropathy may also occur with peripheral nerve entrapments or problems involving spinal nerve roots.

Sometimes more than one factor is present. That’s why simply saying, “Well, I guess I have neuropathy,” shouldn’t necessarily be the end of the investigation. It may be the beginning.

Listen to What Your Feet Are Telling You

Burning. Buzzing. Numbness. Pins and needles. Electrical shocks. Cold sensations. Hot sensations. Pebbles that aren’t there. Socks that mysteriously feel wet. Your nervous system has quite a vocabulary when something isn’t working properly.

The mistake is assuming that these strange sensations are simply something you have to learn to live with, or trying to treat every case of neuropathy exactly the same way.

At Schisler Spine Centre / NeuroDoc Ontario, we start by trying to understand the individual in front of us: the pattern of symptoms, how the nerves are functioning and what factors may be contributing to the problem. From there, we can discuss whether our treatment approach may be appropriate for you.

If you’ve been experiencing numbness, burning, tingling, balance changes or those peculiar “pebbles in my socks” sensations, consider having them properly evaluated. Call our office and book a free consultation.

Bring us the strange descriptions. Tell us about the wet socks that aren’t wet, the invisible pebbles and the feet that somehow manage to feel both numb and painful. Because those odd sensations aren’t just complaints. They’re clues. And understanding the clues is where a sensible conversation about your options should begin.