“My heart races even though cardiac tests show nothing wrong.” “I’m exhausted, yet I can’t sleep.” “Headaches, dizziness, and stomach problems just keep coming one after another.” — If symptoms like these are piling up and you’re unsure where to turn, you’re not alone.
Autonomic nervous system disorder involves a complex interplay of physical and emotional symptoms, and many people are told the cause is “unknown,” leaving them feeling lost. On this page, we explain how the autonomic nervous system works, what symptoms may arise, and what treatment options are available — all from the perspective of psychosomatic medicine.
Keldsen Family Clinic offers both Psychosomatic Medicine and Internal Medicine under one roof, a 1-minute walk from ‘Oizumi Yubinkyoku’ bus stop, accessible by Seibu Bus from Oizumi-Gakuen Station. We are open on weekends and holidays and also offer telemedicine. “I don’t know where to go for help” — let us be the first place you reach out to.
About Psychosomatic and Stress-Related Conditions
Psychosomatic conditions are physical illnesses in which psychological factors — such as stress, emotions, and life circumstances — play a significant role in their onset and progression. Conditions such as stomach ulcers, irritable bowel syndrome, tension-type headaches, and bronchial asthma may also be treated as psychosomatic disorders.
Autonomic nervous system disorder is often discussed within the context of these psychosomatic and stress-related conditions. When workplace pressure, interpersonal tension, disrupted daily routines, and chronic sleep deprivation accumulate, the body begins to send out various signals. When those signals manifest as palpitations, dizziness, gastrointestinal discomfort, and fatigue, the condition may be referred to as autonomic nervous system disorder.
In modern life, factors such as long working hours, excessive smartphone use, and irregular sleep-wake cycles make it increasingly easy for the autonomic nervous system to become unbalanced. If symptoms are dismissed as “nothing serious” or “just in your head,” they may become chronic, and in some cases may progress to depression or anxiety disorder.
The mind and body cannot be separated. There is no need to agonize over whether your symptoms are “physical” or “mental.” Visiting a clinic that offers both psychosomatic medicine and internal medicine — where both aspects can be addressed together — is the shortest path to early improvement.
What Is Autonomic Nervous System Disorder?
Rather than being a formal medical diagnosis, autonomic nervous system disorder is best understood as a general term for the various physical and emotional symptoms that arise when the autonomic nervous system falls out of balance. We want to be upfront about this distinction.
The autonomic nervous system controls functions that operate automatically without conscious effort — including heart rate, breathing, digestion, body temperature regulation, and blood pressure. It consists of two branches: the sympathetic nervous system (which activates the body for action and alertness) and the parasympathetic nervous system (which promotes rest and recovery). These two systems work in balance, adjusting to the demands of each situation.
In a healthy state, the sympathetic nervous system is more active during the day to support activity, while the parasympathetic nervous system takes over at night and during rest to help the body recover. However, when stress, fatigue, sleep deprivation, or irregular lifestyle habits persist, this balance can break down — the sympathetic nervous system may remain overactive, or the switch to the parasympathetic mode may not happen properly. This is essentially what is meant by autonomic nervous system disorder.
Because the autonomic nervous system influences virtually every organ and system in the body, an imbalance can produce symptoms across multiple areas — the heart, blood vessels, digestive system, respiratory system, skin, and immune system. This is why many people end up feeling that “something is wrong, but no one can tell me what.”
It is important to note that conditions such as depression, anxiety disorder, panic disorder, menopause-related symptoms, and thyroid disease may be underlying an apparent case of autonomic nervous system disorder. When tests continue to come back normal despite ongoing symptoms, it is essential to consider the possibility of a mental health condition and to seek a thorough evaluation at a psychosomatic medicine clinic.
At Keldsen Family Clinic, we provide comprehensive care — from ruling out physical causes to assessing emotional well-being — through both our Internal Medicine and Psychosomatic Medicine departments. Even if you simply want someone to listen, please feel free to reach out.
Autonomic imbalance can occur regardless of age or gender. In women, hormonal fluctuations related to the menstrual cycle or menopause are common triggers. In men, it tends to become more apparent during the 40s and 50s, when work demands are at their peak. Younger people, too, may develop autonomic imbalance due to the stress of entrance exams, job hunting, or interpersonal challenges. Whatever your age, if you’re experiencing symptoms that concern you, we encourage you to seek help early.
If you’re wondering whether an underlying condition may be involved, please also see our pages on depression, panic disorder, and anxiety disorder.
Symptoms and Characteristics of Autonomic Nervous System Disorder
The hallmark of autonomic nervous system disorder is that symptoms can appear across the entire body in a wide variety of forms. Despite medical tests showing no abnormalities, patients experience overlapping symptoms such as palpitations, dizziness, fatigue, and digestive problems that interfere with daily life — this is the typical picture of the condition.
Symptoms can be organized into three categories: physical symptoms, emotional symptoms, and effects on daily life.
Specific Symptom Examples
Physical Symptoms
- Palpitations and increased heart rate — feeling your heart pounding even at rest
- Dizziness, unsteadiness, and lightheadedness — occurring when standing up or even while sitting still
- Headaches and a feeling of heaviness in the head — a squeezing sensation or a heavy feeling in the head
- Fatigue and a tendency to tire easily — feeling exhausted even after adequate rest, persistent sluggishness
- Shortness of breath and a sensation of hyperventilation — feeling the urge to take deep breaths, or a tightness in the chest
- Digestive problems — loss of appetite, nausea, bloating, or alternating constipation and diarrhea
- Numbness and coldness in the hands and feet — especially cold extremities or a feeling of reduced sensation
- Abnormal sweating — excessive sweating without feeling nervous, or difficulty sweating at all
- Insomnia and light sleep — difficulty falling asleep or waking up repeatedly during the night
- Tinnitus and sensitivity to light and sound — finding noise and bright lights more bothersome than before
Emotional Symptoms
- Intense mood swings — feeling down or on edge for no apparent reason
- Irritability, restlessness, and tension — becoming easily angered over small things, feeling constantly unsettled
- Difficulty concentrating and memory problems — struggling to perform at work or school as before
- Persistent anxiety — a vague, ongoing sense of unease or a feeling that something bad is about to happen
- Loss of motivation — lacking the drive to do things you want to do
Effects on Daily Life
- Decreased efficiency at work or with household tasks
- Reluctance to go out or meet people
- Inability to feel refreshed even after days off
- A vicious cycle in which fear of symptoms leads to even more tension and anxiety
Simply knowing that this many symptoms can overlap is often enough to bring a sense of relief. Rather than struggling alone, taking the step to see a doctor and get a clear picture of your situation is an important first move.
Treatment and Management of Autonomic Nervous System Disorder
The basic approach to treating autonomic nervous system disorder is to identify the underlying causes and then combine medication, psychosocial support, lifestyle adjustments, and self-care strategies. Rather than relying on a single method, pursuing multiple approaches in parallel is believed to lead to improvement for many patients.
1. Medication
Medication for autonomic nervous system disorder varies depending on the type and severity of symptoms and what may be driving them.
- Anti-anxiety medications — may be used on a short-term basis when anxiety, tension, and palpitations are prominent. To minimize the risk of dependence, these are generally prescribed at the lowest effective dose for the shortest necessary period.
- SSRIs (selective serotonin reuptake inhibitors) and other antidepressants — may be considered when depression, anxiety disorder, or panic disorder is identified as an underlying factor. These medications may also help improve autonomic symptoms more broadly.
- Beta-blockers — may be used for symptoms driven by sympathetic nervous system overactivity, such as palpitations and hand tremors.
- Kampo (traditional Japanese herbal medicine) — may be prescribed to support overall physical balance. Commonly used formulas include Hochuekkito for decreased energy and vitality, Kamishoyosan for hormonal imbalance and emotional instability, and Hangekobokuto for a sensation of tightness in the throat and low mood.
Starting or stopping any medication on your own may worsen symptoms, so it is important to always work with your doctor.
2. Psychosocial Support
When stress or emotional exhaustion is a contributing factor, psychological approaches — not just medication — may be beneficial.
- Cognitive Behavioral Therapy (CBT) — helps you recognize and change the thought patterns and behaviors that contribute to stress and physical symptoms. CBT can also be applied to autonomic symptoms.
- Supportive psychotherapy — involves talking through your feelings with a doctor or counselor who provides a supportive, nonjudgmental space. Organizing your thoughts in this way can help ease anxiety and tension.
- Relaxation techniques — practices such as diaphragmatic breathing, progressive muscle relaxation, and autogenic training can help release physical tension and promote parasympathetic activity.
At Keldsen Family Clinic, we take the time to listen carefully during consultations and, when appropriate, guide you toward a psychological support plan.
3. Adjustments at School or Work
Because environmental stress often plays a major role in autonomic nervous system disorder, reviewing your situation at school or work can be an important part of recovery.
- Review your workload and overtime hours, and make sure you have time to rest
- Take short relaxation breaks during lunch (deep breathing, a brief walk)
- Share your situation with a trusted supervisor or teacher and ask for accommodations
- When necessary, consider adjustments such as reduced hours, remote work, or a leave of absence
- Try letting go of the idea that “pushing through is a virtue”
We can also provide medical certificates if you need documentation for your workplace or school. Please don’t hesitate to ask.
4. Support at Home
Support from family members can be a powerful aid in recovering from autonomic nervous system disorder.
- Avoid saying things like “Isn’t it just in your head?” or “You just need to try harder” — do not dismiss the symptoms
- Listen quietly and respect the person’s own pace
- Encourage regular daily routines and help create structure together
- Offer practical support, such as suggesting a clinic visit or accompanying them to appointments
- Family members should also take care not to carry the worry alone — it’s okay to seek your own support
5. Self-Care in Daily Life
Adjusting everyday habits is considered fundamental to restoring autonomic balance.
- Keep a consistent wake-up and bedtime — establishing a regular schedule supports the body’s internal clock and helps the autonomic nervous system find its rhythm
- Get morning sunlight — exposure to natural light after waking helps the body shift smoothly into sympathetic mode
- Light aerobic exercise — walking, stretching, and yoga can help regulate the autonomic nervous system without placing undue strain on the body
- Practice diaphragmatic breathing — slow, deliberate exhaling activates the parasympathetic nervous system. Even a few minutes several times a day may make a difference
- Reduce caffeine, alcohol, and tobacco — all of these can disrupt autonomic balance
- Take warm baths — soaking in water at around 38–40°C (100–104°F) may help promote parasympathetic activity
- Limit screen time — bright screens, especially before bed, stimulate the sympathetic nervous system
- Make time for hobbies and enjoyment — pleasurable activities support both mental and physical recovery
With appropriate care and lifestyle adjustments, symptoms of autonomic nervous system disorder can be expected to improve for many people. Feeling unwell despite normal test results is not “just in your head.” Please don’t struggle alone — reach out to Keldsen Family Clinic. We are a 1-minute walk from ‘Oizumi Yubinkyoku’ bus stop, accessible by Seibu Bus from Oizumi-Gakuen Station, open on weekends and holidays, and also offer telemedicine.