Is It Autonomic Nervous System Disorder or Something Else?

Is it autonomic nervous system dysfunction or another condition?

Hello doctor, I started experiencing symptoms suggestive of autonomic nervous system dysfunction last year.
During episodes, I experience palpitations, chest tightness, shortness of breath, dizziness, and abdominal discomfort, and occasionally my hands and feet go numb alternately.
I only underwent cardiac examinations at that time, and the doctor mentioned that my heart ventricles are slightly larger than average, advising me to return immediately if I faint.
However, despite undergoing numerous electrocardiograms, none reflected the distress I felt during those episodes.
These symptoms usually improve significantly after I practice abdominal breathing to calm down.
I initially found relief through traditional Chinese medicine (which I've been taking since last year), but recently, the aforementioned symptoms have started to recur.
I've also noticed that I frequently wake up due to hand numbness and my fingernails turning purple (even without any pressure), but they improve after shaking them or changing positions.
Should I consider seeing a cardiologist again, or could this also be related to autonomic nervous system dysfunction?

A-Wang, 20~29 year old female. Ask Date: 2021/09/12

Dr. Jiang Junyi reply Neurology

Dear Ms.
Wang,
You mentioned that you have been frequently waking up due to hand numbness and purple nails (even without any pressure), which may indicate carpal tunnel syndrome.
Carpal tunnel syndrome typically occurs in individuals who perform repetitive wrist movements, such as mechanics, carpenters, typists, and homemakers, and it is particularly common in the dominant hand.
Symptoms often worsen with work-related activities.
The incidence of carpal tunnel syndrome in women is 3 to 10 times higher than in men.
Additionally, other conditions such as diabetes, hypothyroidism, rheumatoid arthritis, and amyloidosis can also contribute to the development of carpal tunnel syndrome.

Thank you for your inquiry, and feel free to discuss any related questions further!
Wishing you good health and peace,
Dr.
Jiang Junyi, Taoyuan Medical Center

Reply Date: 2021/09/12

More Info

Based on your description, it seems that you are experiencing a range of symptoms that could indeed be related to autonomic nervous system (ANS) dysfunction, commonly referred to as autonomic dysregulation or autonomic nervous system disorder. The symptoms you mentioned, such as palpitations, chest tightness, shortness of breath, dizziness, abdominal discomfort, and intermittent numbness in your limbs, are characteristic of ANS disorders.
The autonomic nervous system is responsible for regulating involuntary bodily functions, including heart rate, blood pressure, digestion, and respiratory rate. It consists of two main branches: the sympathetic nervous system (which prepares the body for 'fight or flight' responses) and the parasympathetic nervous system (which promotes 'rest and digest' activities). When there is a dysfunction in this system, it can lead to a variety of symptoms, as you have described.

Your experience of symptoms improving with abdominal breathing suggests that you may be activating your parasympathetic nervous system, which can help calm the body and reduce anxiety. This is a common technique used in managing symptoms related to anxiety and autonomic dysfunction.
The fact that you have had episodes of your fingers turning purple and experiencing numbness could indicate issues with blood circulation or nerve function. This might be related to vasoconstriction, where blood vessels narrow, reducing blood flow to the extremities, or it could be a sign of peripheral neuropathy. Given that these symptoms have been recurrent, it would be prudent to consult with a healthcare provider who specializes in neurology or cardiology.

You mentioned that you have already undergone several cardiac evaluations, including electrocardiograms (ECGs), which did not reveal any significant issues. However, it is essential to ensure that there are no underlying cardiac conditions that could be contributing to your symptoms, especially since you have noted changes in your heart's structure. It may be beneficial to undergo further testing, such as an echocardiogram or a Holter monitor, to assess your heart's function over a more extended period.

In addition to cardiac evaluations, it may also be helpful to explore other potential causes of your symptoms. Conditions such as anxiety disorders, panic attacks, and even thyroid dysfunction can mimic or exacerbate autonomic dysfunction symptoms. A comprehensive evaluation by a healthcare provider, including a review of your medical history, lifestyle factors, and any psychological stressors, could provide more insight into your condition.

Moreover, lifestyle modifications can play a significant role in managing autonomic dysfunction. Regular physical activity, a balanced diet, adequate hydration, and stress management techniques (such as mindfulness, yoga, or cognitive-behavioral therapy) can help improve your overall well-being and potentially reduce the frequency and severity of your symptoms.

In summary, while your symptoms may align with autonomic nervous system dysfunction, it is crucial to continue working with healthcare professionals to rule out any serious underlying conditions. A multidisciplinary approach involving cardiology, neurology, and possibly psychiatry may provide the best pathway to understanding and managing your symptoms effectively. If your symptoms persist or worsen, do not hesitate to seek further medical advice.

Similar Q&A

Understanding Autonomic Nervous System Dysregulation: Causes and Symptoms

Hello Dr. Li, I would like to understand what autonomic nervous system dysfunction is. Is it a disease? What causes it? I visited a psychiatrist yesterday, and the doctor said I have this condition. Sometimes at work, I feel like I'm sinking for about one or two seconds, and...

Dr. Li Junren reply Psychiatry
The autonomic nervous system is the part of the nervous system that regulates the various organs in the body. In addition to maintaining the normal functioning of the body's organs under regular conditions, it also needs to "mobilize" the organs in response to stre...

Is This Autonomic Nervous System Dysfunction? Understanding Your Symptoms

I have been experiencing frequent vomiting lately, which I feel is caused by palpitations. I get very anxious with even slight stress, often feeling short of breath, and I also experience weakness in my limbs, chest tightness, and numbness in my fingers and knees. Does this indic...

Dr. Qiu Junda reply Psychiatry
Hello: The text does suggest the possibility of autonomic nervous system dysfunction. It would be beneficial to gather information online about how to cope with autonomic nervous system disorders, such as relaxation techniques. If there is no improvement, it is advisable to seek ...

Understanding Autonomic Nervous System Disorders: Causes, Treatments, and Medications

Hello: What causes autonomic nervous system dysfunction? What medications should be taken when it occurs? What diagnostic and treatment options should be considered?

Dr. Cai Jueren reply Family Medicine
The so-called "autonomic nervous system" includes the "sympathetic nervous system" and the "parasympathetic nervous system," which govern the activities and functions of the body's internal organs and control the secretion of glands. This system...

Understanding Autonomic Nervous System Disorders: When to Seek Further Testing?

Hello doctor, around the end of July this year, after having dinner and using my phone, I suddenly felt a brief disconnection in my mind for a second, followed by numbness in my hands. I panicked, thinking I might be having a stroke. This was accompanied by many symptoms of auton...

Dr. Ye Qianyu reply Family Medicine
Hello! Based on your description, alcohol may lead to poor vitamin absorption, which can result in macrocytic anemia, alcoholic hepatitis, acute gastritis, and alcoholic encephalopathy, potentially causing autonomic nervous system dysfunction. It is recommended that you regularly...