Inner Restlessness: Causes, Symptoms & Treatment

What is Inner Restlessness?

Inner restlessness is a subjective feeling of tension, nervousness, and agitation that many people experience temporarily or on an ongoing basis. Those affected often describe it as an internal trembling, a tingling sensation, or an indefinable sense of discomfort. Inner restlessness is not a standalone medical condition but rather a symptom that can point to various underlying illnesses or stressful life situations.

Causes

The possible causes of inner restlessness are varied and can be broadly categorised into psychological, physical, and lifestyle-related factors:

Psychological Causes

• Anxiety disorders: Generalised anxiety disorder, panic disorder, or social phobia are frequently associated with persistent inner restlessness.
• Depression: In addition to low mood, inner tension and restlessness can be a central feature of depression.
• Burnout and chronic stress: Overload in professional or personal life often leads to prolonged inner tension.
• Post-Traumatic Stress Disorder (PTSD): A persistent state of heightened alertness and restlessness may follow traumatic experiences.
• Sleep disorders: Lack of sleep significantly amplifies inner restlessness.

Physical Causes

• Thyroid disorders: An overactive thyroid (hyperthyroidism) is one of the most common organic causes of inner restlessness.
• Hormonal fluctuations: Changes in hormone levels, for example during menopause or as part of premenstrual syndrome (PMS), can trigger inner restlessness.
• Cardiac arrhythmias: An irregular heartbeat can intensify feelings of restlessness and anxiety.
• Low blood sugar (hypoglycaemia): A drop in blood glucose levels can manifest as trembling, sweating, and inner restlessness.
• Nutritional deficiencies: A deficiency in magnesium, vitamin B12, or other nutrients can affect the nervous system and contribute to restlessness.

Lifestyle-Related Causes

• Caffeine and stimulants: Excessive consumption of caffeine, energy drinks, or other stimulants can trigger or worsen inner restlessness.
• Alcohol and drugs: Both the consumption and withdrawal of alcohol and other substances can cause states of restlessness.
• Lack of physical activity: Insufficient exercise can lead to pent-up energy manifesting as restlessness.
• Medications: Certain medications such as corticosteroids, some antidepressants, or bronchodilators can cause inner restlessness as a side effect.

Symptoms

Inner restlessness manifests in various ways. Typical accompanying symptoms include:

• Nervousness and irritability
• Difficulty concentrating
• Sleep problems (difficulty falling or staying asleep)
• Rapid heartbeat or palpitations
• Sweating, especially cold sweats
• Trembling or muscle twitching
• Gastrointestinal complaints such as abdominal pain or diarrhoea
• Headaches or tension headaches
• A feeling of inner emptiness or loss of control

Diagnosis

Since inner restlessness is a symptom rather than a standalone condition, diagnosis focuses on identifying the underlying cause. A doctor will typically take the following steps:

• Detailed medical history: Assessment of health background, current stressors, sleep patterns, and lifestyle habits.
• Physical examination: Checking heart rate, blood pressure, and general health status.
• Blood tests: Checking thyroid values (TSH, fT3, fT4), blood glucose, electrolytes (e.g. magnesium), and vitamins (e.g. B12, D).
• Psychological assessment: If a psychological cause is suspected, referral to a psychiatrist or psychotherapist may be appropriate.
• ECG: To rule out cardiac arrhythmias.

Treatment

Treatment depends on the underlying cause. The following main approaches can be distinguished:

Medical Treatment

• For hyperthyroidism, thyrostatic medications or other targeted therapies are used.
• For anxiety disorders or depression, psychotherapy (e.g. cognitive behavioural therapy) and/or medication with antidepressants or anxiolytics can be effective.
• For nutritional deficiencies (e.g. magnesium, vitamin B12), targeted supplementation is recommended.

Psychotherapeutic Approaches

• Cognitive Behavioural Therapy (CBT): Helps identify and change thought and behaviour patterns that contribute to restlessness.
• Mindfulness-Based Stress Reduction (MBSR): Meditation techniques and mindfulness exercises to calm the nervous system.
• Relaxation techniques: Progressive muscle relaxation, autogenic training, or biofeedback.

Lifestyle Changes

• Regular physical exercise (e.g. walking, yoga, swimming)
• Reducing caffeine, alcohol, and nicotine intake
• Improving sleep hygiene
• Stress management and conscious breaks in daily life
• A balanced diet and regular meals to stabilise blood sugar levels

Herbal and Natural Remedies

Various herbal preparations can offer supportive relief for mild inner restlessness, for example:

• Valerian root: Traditionally used to promote sleep and relaxation.
• Passionflower: Studies suggest anxiolytic properties.
• Lavender oil (Silexan): An approved preparation for anxiety and restlessness states.
• Lemon balm: Traditionally used to calm the nervous system.

When to See a Doctor

Inner restlessness that persists for several weeks, interferes with daily life, or is accompanied by additional symptoms such as a rapid heartbeat, significant weight loss, sleep disturbances, or anxiety attacks should be medically evaluated. A visit to the doctor is also advisable if the restlessness occurs suddenly and without an identifiable reason.

References

1. World Health Organization (WHO): Mental health: strengthening our response. Fact Sheet (2022). Available at: www.who.int
2. Bandelow B, Michaelis S, Wedekind D: Treatment of anxiety disorders. Dialogues in Clinical Neuroscience, 2017; 19(2): 93-107.
3. National Institute for Health and Care Excellence (NICE): Generalised anxiety disorder and panic disorder in adults: management. Clinical Guideline CG113 (2011, updated 2019). Available at: www.nice.org.uk