Hello
This is a very unusual symptom, and while no one can diagnose it online, there are neurological mechanisms that could explain it.
The phenomenon you describe—shifting weight by raising an arm or tilting the head causes the whole body to lean, bend, or rotate in that direction despite preserved strength and no true loss of balance—suggests a problem with the body’s postural control and proprioceptive system (the sense that tells the brain where the body is in space).
Possible neurological explanations include:
1. Sensory ataxia / proprioceptive dysfunction * If sensory signals from the legs, trunk, or spine are impaired (due to neuropathy or spinal cord involvement), the brain may have difficulty determining body position. * Closing the eyes often makes symptoms much worse because vision can no longer compensate. * Patients may feel pulled or twisted despite having normal muscle strength. 2. Lateropulsion (body lateropulsion) * A neurological phenomenon in which a person experiences a compelling sensation of being pulled to one side. * Can occur with lesions affecting vestibular pathways, brainstem structures, cerebellar connections, or sensory pathways. * Patients may lean or drift without feeling dizzy. 3. Truncal ataxia or axial proprioceptive dysfunction * The muscles of the trunk receive inaccurate positional information, leading to abnormal automatic postural adjustments. * This can create a sensation that the torso is twisting or rotating independently of conscious control. 4. Dystonia affecting the trunk (axial dystonia) * In some neurological disorders, involuntary muscle activation causes twisting postures and abnormal body rotation. * Patients may describe being “pulled” to one side.
The fact that:
* symptoms worsen when walking, * are more obvious with eyes closed, * occur despite preserved strength, * and are associated with numbness/tingling,
makes a sensory-proprioceptive disorder particularly worth considering.
The sensation that everything feels “two or three times heavier” than it actually is can also occur when the brain is receiving abnormal sensory feedback from the limbs and trunk.
Treatment depends entirely on the cause. Examples include:
* Treating an underlying neuropathy if present. * Vestibular rehabilitation if vestibular pathways are involved. * Targeted neuro-physiotherapy focused on balance and proprioception. * Medications or botulinum toxin in selected cases of dystonia.
One important clue would be whether she can stand with her feet together:
* With eyes open. * Then with eyes closed.
A marked worsening with eye closure (a positive Romberg-type pattern) would strongly support impaired proprioceptive input rather than primary muscle weakness.
Given the combination of numbness/tingling, altered body-position perception, and these unusual postural symptoms, the symptom sounds less like a muscle problem and more like a disorder of how the nervous system is processing position and balance information. The MRI and neuropathy evaluation currently underway are therefore very relevant to identifying the exact cause.
Hello,
The symptom you are describing is unusual, but there are some neurological concepts that may help explain it.
The phenomenon where shifting weight by raising an arm, moving the head, or changing body position causes the body to lean or rotate in that same direction suggests a disturbance in the brain’s or nervous system’s perception of body position in space (proprioception) or in the automatic postural control systems that keep us upright.
Some possibilities include:
Sensory ataxia/proprioceptive dysfunction: If the nerves carrying position-sense information from the legs or trunk are impaired, the brain may have difficulty knowing where the body is in space. Patients may drift, lean, or rotate, especially when visual input is reduced (such as walking with eyes closed).
Vestibular disorders: The inner ear and its brain connections help maintain orientation. Some vestibular conditions can produce pulling, tilting, or rotational sensations even without a classic spinning vertigo.
Lateropulsion (body lateropulsion): A neurological phenomenon where a person has a tendency to fall or lean toward one side due to disruption of balance and spatial-orientation pathways. This can occur in disorders affecting the brainstem, cerebellum, vestibular pathways, or their connections.
Truncal ataxia or cerebellar dysfunction: The cerebellum coordinates posture and gait. Problems in these pathways can produce a sensation that the body is being pulled or twisted despite preserved muscle strength.
Functional neurological disorder (FND): In some cases, especially when symptoms are complex and investigations are unrevealing, abnormal movement and balance patterns can occur without structural damage to the nervous system. This is a genuine neurological condition, not something imagined.
The fact that:
Muscle strength is preserved,
There is a sensation that limbs feel much heavier than they are,
Numbness/tingling are present,
Symptoms become more apparent when visual cues are removed,
makes abnormalities of sensory processing or proprioception particularly worth considering.
One important detail is whether she can stand with her feet together and eyes closed. If she becomes markedly unstable compared with eyes open, that would support a sensory/proprioceptive problem.
The term “twisting sensation from the lower back” itself is not a specific diagnosis. It is more likely a subjective perception generated by the nervous system rather than an actual spinal twisting movement.
To narrow this down further, it would be helpful to know:
Her age.
Whether symptoms are affecting both sides equally.
Whether she has true numbness, reduced vibration sense, or loss of position sense in the feet.
What medications she is taking.
Whether the MRI is of the brain, spine, or both.
Whether she can walk normally with eyes open but drifts significantly with eyes closed.
While anxiety can certainly make these symptoms feel more frightening, the specific leaning/rotating phenomenon you describe is not something that is typically explained by anxiety alone and deserves the neurological evaluation that is already underway.
Feel free to reach out again.
Regards, Dr. Nirav Jain MBBS, D.Fam.Medicine
Hello Thank you for describing the symptoms in detail—this helps a lot in understanding the situation. The phenomenon you’re describing, where shifting weight or moving an arm or head causes involuntary bending or rotation of the body, especially when walking (and more so with eyes closed), is quite unusual and specific.
### What Is This Symptom Called? This is best described as abnormal postural responses or involuntary postural deviation. In neurology, it can sometimes be referred to as dystonia (if there are sustained muscle contractions causing twisting and abnormal postures), or paroxysmal kinesigenic dyskinesia (if brief, involuntary movements are triggered by sudden movement). However, your description seems more like a proprioceptive or sensorimotor integration disorder—where the brain’s ability to process movement and position signals is disrupted, leading to abnormal responses when shifting weight or moving limbs.
### What Could Be Causing It? There are several possible causes, but the most likely ones include:
1. Proprioceptive Dysfunction:
The body’s sense of position (proprioception) is not being processed correctly, so normal movements trigger abnormal postural adjustments. This can happen with certain neurological conditions affecting the spinal cord, brainstem, or cerebellum.
2. Dystonia or Movement Disorder:
Some forms of dystonia or movement disorders can cause involuntary twisting or bending, especially triggered by movement or changes in posture.
3. Cerebellar Dysfunction:
The cerebellum coordinates movement and balance. If it’s not working properly, movements can become uncoordinated or trigger abnormal postures, even without loss of balance.
4. Sensory Integration Disorder:
Sometimes, the brain’s ability to integrate sensory signals (from muscles, joints, and skin) is disrupted, leading to abnormal movement patterns.
5. Functional Neurological Disorder:
In some cases, these symptoms can occur without a clear structural cause, due to how the nervous system processes movement and sensation.
### Why Does This Happen? Normally, when you move an arm or shift your head, your brain automatically adjusts your posture to keep you upright. If the pathways that control these adjustments are disrupted (by nerve, muscle, or brain dysfunction), the body can overcompensate or respond abnormally, causing involuntary bending or rotation.
### Possible Treatments Treatment depends on the underlying cause, but may include: - Physical therapy: Focused on retraining balance and proprioception. - Neurological medications: If a movement disorder like dystonia is diagnosed. - Sensory integration therapy: For proprioceptive or sensory processing issues. - Botulinum toxin injections: Sometimes used for focal dystonia. - Supportive care: Adaptive devices, occupational therapy, and strategies to minimize triggers.
### Summary This symptom is not common and is most likely due to a disruption in how the brain processes movement and position signals—possibly a form of dystonia, proprioceptive dysfunction, or cerebellar disorder. It’s scary, but it’s not typically dangerous if there’s no loss of balance or falls. Ongoing neurological evaluation is the right path, and targeted therapy can help manage symptoms.
Thank you
Hello dear See you have combination of Anxiety Twitching Irritation Earlier three was overactivity of brain but now the processing speed has fallen Reason is Change of diurnal cycle of sleep Emotional instability Lack of Focus However it can be modified by following precautions Do meditation Take good balanced diet for good health Engage in social media Indulge in hobbies like reading and writing Avoid overthinking Avoid junk food and alcohol/ smoking Set your goals for every day In addition please get following tests routinely for confirmation CBC Serum ferritin Serum tsh Serum dopamine and serotonin Serum bradykinin EMR Mri Ct scan Brain USG Hopefully you recover soon Regards
Based on the symptoms you’re describing, the phenomenon could relate to an issue with proprioception, which is the body’s ability to perceive its own position in space. This is part of the sensory system that might be disrupted, leading to the twisting and bending sensations when certain actions are taken—like raising an arm or bending the head. Since these sensations originate in the lower back and there’s no loss of balance, the problem may not stem from the vestibular system, which more typically governs balance. There may be a problem with nerve signaling pathways causing the brain to misinterpret where the limbs are oriented.
Given that you’re already undergoing tests for neuropathy in the arms and legs, it’s good you’re on the right track, as neuropathy can affect sensory nerves causing altered proprioception. Specific types of peripheral neuropathy, such as sensory ataxic neuropathy, might match the symptoms. This condition can result in coordination issues due to impaired sensory feedback, even if muscle strength isn’t directly affected. Other potential causes could include conditions that affect the spinal cord or specific neurological disorders involving proprioceptive pathways, such as multiple sclerosis.
In terms of treatment, it’s crucial to target the underlying cause, once identified. Management typically involves symptomatic relief and addressing any primary condition identified through testing. For instance, if a neuropathy is confirmed, optimizing glucose control in diabetic neuropathy or supplementing deficiencies in vitamin-related neuropathies might be recommended. Engaging in physical therapy may help improve proprioceptive function and movement coordination. Balance and coordination exercises can be beneficial even when balance is not overtly impaired, gradually retraining the brain and the body.
As the exact cause is key to deciding treatment, keep pursuing the diagnostic process with your healthcare provider. While the tests are ongoing, noting when and how symptoms change under different conditions can provide valuable information for clinicians. Remember to report any new symptoms or if the condition significantly worsens, as that might trigger a reevaluation of the diagnosis.
