The ‘Can’t Feel My Feet’ Symptom Doctors See in Nitrous Oxide Nerve Injury

Nitrous oxide injury lawsuits have emerged as more people report numbness, balance problems and difficulty walking after using products widely sold in vape shops or online, without warnings about potential side effects.

Although products like Galaxy Gas, Looper and other nitrous oxide canisters are widely sold over the counter in vape shops or online, there is a growing body of medical evidence that makes it clear inhaling nitrous oxide can severely damage the nervous system, leaving some users unable to feel their feet, maintain balance or walk normally.

The canisters are commonly referred to as “whippets” or “laughing gas,” but nitrous oxide was originally intended for use as a dental anesthetic and food propellant. However, in recent years, the products have been increasingly sold for recreational inhalation, with marketing that appears designed to attract teens and young adults seeking a short-lived euphoric high.

Flavored nitrous oxide canisters are now easily purchased online or at smoke shops, often together with balloons or other accessories that promote inhaling the gas. However, the packaging omits information about the serious risk of neurological harm from inhaling nitrous oxide.

Doctors say repeated exposure to nitrous oxide can interfere with how the body uses vitamin B12, disrupting nerve signaling and the protective myelin that allows the spinal cord and peripheral nerves to function properly. In some cases, this damage progresses before pain appears, first showing up as subtle but alarming changes in sensation and balance.

For many people, the earliest warning is difficult to describe in medical terms. Patients often explain it this way:

• “It feels like my feet aren’t connected to my brain,” or
• “I’m walking, but I can’t feel the floor.”

Clinicians have increasingly reported this pattern of symptoms among teens and young adults with even a short history of nitrous oxide misuse, a concern that has drawn growing medical and legal scrutiny.

As awareness of these injuries has expanded, nitrous oxide lawsuits have followed, alleging that manufacturers and sellers failed to adequately warn consumers about the risk of nerve damage and spinal cord injury linked to repeated inhalation. Many claims focus on how the products were marketed and distributed, including allegations that colorful branding, flavored varieties and easy retail access encouraged misuse while downplaying the potential for life-altering neurological harm.

What people mean when they say “I can’t feel my feet”

Neurologists say patients rarely describe nerve injury in medical terms. Instead, they explain how ordinary movement suddenly feels unreliable, even when they can still move their legs and feet.

That pattern is reflected in published clinical reports of nitrous oxide abuse. In a case series published in BMJ Case Reports, doctors described young adults who initially noticed numbness and tingling in their fingers and toes, followed by growing unsteadiness, difficulty judging steps and repeated falls as the symptoms progressed.

Common descriptions reported by nitrous oxide users include:

• Feet feeling numb, heavy or “rubbery”
• A sensation similar to wearing thick socks or shoes
• Tingling or pins-and-needles in the feet or legs
• Trouble judging steps, curbs or stairs
• Balance worsening in the dark or when eyes are closed
• Tripping or stumbling without an obvious reason

In one case, a 20-year-old man reported mild numbness in his fingers and toes that gradually spread, accompanied by worsening balance and gait instability. In another, a 21-year-old construction worker described repeated falls, difficulty coordinating his hands and feet, and an inability to distinguish objects in his pockets without looking.

Doctors note that these symptoms often develop gradually, which can make them easy to dismiss or attribute to clumsiness or fatigue rather than an evolving neurological injury.

Important: If you experience sudden or worsening weakness, increasing difficulty walking, or changes in bladder or bowel control, seek urgent medical care.

The doctor word for this: impaired proprioception

When clinicians evaluate complaints like these, they often describe the problem as impaired proprioception (proh-pree-oh-SEP-shun).

Proprioception is the sense that tells your brain where your body is in space without you having to look. It is what lets you know where your feet are when you step off a curb, walk up stairs or stand still without watching the ground. When proprioception is working, movement feels automatic and stable.

When that system is disrupted, the brain stops getting reliable information from the nerves and spinal cord. People may still be able to move their legs, but walking can feel awkward, unsteady or disconnected, especially in the dark or when their eyes are closed.

In the clinical reports describing nitrous oxide nerve injury, doctors documented loss of proprioception in the fingers and toes, along with balance tests that became abnormal when visual cues were removed.

Why balance and walking can fail before pain shows up

Doctors emphasize that nerve injury does not always cause pain in its early stages. In the nitrous oxide cases described in medical literature, sensory changes and gait instability often appeared before severe weakness or constant pain developed.

Since proprioceptive problems can look like clumsiness or poor coordination, people may delay seeking care until walking becomes noticeably difficult or unsafe. By that point, clinicians warn the underlying nerve or spinal cord involvement may already be more advanced.

How nitrous oxide can be part of the picture

Doctors say nitrous oxide can affect the nervous system in a way most users do not expect. When inhaled repeatedly, nitrous oxide interferes with how the body uses vitamin B12.

Vitamin B12 is not just a vitamin you get from food. It plays a critical role in keeping nerves and the spinal cord healthy and working correctly.

One of B12’s jobs is helping maintain myelin, the protective coating that surrounds nerves. Myelin works like insulation on an electrical wire. It helps nerve signals travel quickly and accurately between the body and the brain.

When nitrous oxide disrupts B12 function, that insulation can break down. Signals may slow, weaken or go to the wrong place. This can make movement feel awkward, balance feel unreliable, and sensation in the feet or hands feel dull or distorted.

Doctors emphasize that this problem is not always caused by a traditional vitamin deficiency. In many nitrous oxide cases, blood tests may appear close to normal, even while nerve function is being disrupted at a deeper level.

The spinal cord connection (and why you may see the term “subacute degeneration”)

In some cases, nitrous oxide nerve damage affects not just the peripheral nerves, but the spinal cord itself.

Doctors may use the term subacute degeneration to describe this pattern of injury. In plain terms, it refers to damage that develops over time in specific parts of the spinal cord that control sensation, balance and coordination.

These areas are especially important for proprioception, the sense that tells your brain where your feet and legs are without needing to look. When they are damaged, walking can feel unsteady, steps can be misjudged, and balance may worsen dramatically in the dark or with eyes closed.

To understand what is happening, doctors often rely on neurological exams and imaging studies, such as MRI scans, to look for changes in the spinal cord that match a person’s symptoms.

Why a “normal B12” test doesn’t always end the story

Many people assume that a normal serum vitamin B12 test means nitrous oxide could not be causing their symptoms. Doctors say that assumption can be misleading.

In cases involving nitrous oxide exposure, clinicians sometimes see neurological symptoms even when standard B12 blood levels appear normal or only slightly low. That is because nitrous oxide can interfere with how the body uses vitamin B12, not just how much of it shows up in a routine blood test.

For that reason, doctors often look at the full picture, including symptoms, neurological exams, and in some cases additional lab markers or imaging results. If numbness, balance problems or walking difficulties persist or worsen, clinicians generally recommend follow-up evaluation rather than relying on a single lab value for reassurance.

What recovery can look like (what people mean by “nitrous B12 recovery”)

Recovery from nitrous oxide nerve injury varies widely. Factors that can influence outcomes include the severity of symptoms, the duration of exposure, and how quickly nitrous oxide use stops. Some individuals require physical therapy or rehabilitation to regain balance and strength, and improvement can be gradual rather than immediate.

Stopping exposure and seeking medical evaluation is often the first step toward stabilization and potential recovery.

Why this matters in nitrous oxide injury lawsuits

As doctors and researchers continue to document neurological injuries linked to nitrous oxide exposure, nitrous oxide injury lawsuits are being filed. Each of the claims allege that manufacturers and sellers intentionally marketed the products toward teens and young adults for inhalation use, while failing to adequately warn consumers about the risk of nerve damage and spinal cord injuries.

For individuals who develop numb feet, balance problems or difficulty walking, the impact can extend far beyond the initial symptoms. Nerve and spinal cord injuries often require extensive medical care, physical therapy and ongoing monitoring, and in some cases can lead to long-term limitations on mobility, work and daily life.

Documentation can be important for anyone considering pursuing a claim. Records that may help clarify what happened include:

• Emergency room or urgent care visits related to neurological symptoms
• Neurology evaluations and physical therapy or rehabilitation notes
• Laboratory results and imaging reports, if ordered
• A written timeline showing when symptoms first appeared and how they progressed
• Photos of nitrous oxide canisters or packaging, if available
• Observations from family members, friends or coworkers who noticed changes in balance, gait or coordination

However, if you do not have this information right away, a nitrous oxide injury lawyer can help you gather these records at no cost. If you or a loved one experienced nerve damage, balance problems or other injuries after using nitrous oxide, submit information about your potential claim for a lawyer to review.

Frequently Asked Nitrous Oxide Questions

What does impaired proprioception feel like?

Impaired proprioception often feels like your body does not quite know where your feet or hands are unless you look at them. People commonly describe feeling unsteady, clumsy or disconnected from the ground, especially when walking, standing still or moving in the dark.

Can nitrous oxide cause numb feet and trouble walking?

Doctors and researchers have reported cases where repeated nitrous oxide use was linked to numbness in the feet, balance problems and difficulty walking. These symptoms are believed to be related to how nitrous oxide interferes with nerve and spinal cord function, particularly through its effects on vitamin B12 activity.

Why is my balance worse in the dark?

When balance worsens in the dark, it can be a sign that the body is relying more heavily on vision to compensate for impaired sensory signals. If proprioception is disrupted, the brain has a harder time knowing where the feet and legs are without visual cues, making movement feel unstable when the lights are low or eyes are closed.

Can you have nerve damage with a normal serum vitamin B12?

Yes, in some cases. Clinicians have reported neurological symptoms in people with nitrous oxide exposure even when serum vitamin B12 levels appear normal. This is because nitrous oxide can affect how the body uses B12, not just how much is measured in a routine blood test.

How long does nitrous B12 recovery take?

Recovery timelines vary widely. Some people notice improvement over weeks or months, while others may require longer periods of rehabilitation or physical therapy. Factors such as how long nitrous oxide was used, how severe the symptoms are, and how quickly exposure stopped can all affect recovery.