Anxiety is not only in the mind. When the body’s stress response switches on, it can produce a wide range of very real physical sensations, and many people worry these signs point to a serious illness, which only fuels more anxiety. Understanding why each symptom happens is often the first step to breaking that cycle. Here are ten of the most common physical symptoms of anxiety and what causes them. These symptoms can overlap with other conditions, so see a doctor if they are severe, persistent or worrying.
1. Fatigue
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Living in a near-constant state of high alert is exhausting. When the mind keeps scanning for threats, the body stays tense, and that ongoing arousal drains energy, leaving many people tired even after a full night’s sleep.
2. Heart Palpitations
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A pounding, fluttering or skipping heartbeat is one of the most frightening anxiety symptoms, and it is easy to mistake for a heart problem. The sensation comes from the adrenaline released during the stress response and usually settles within a few seconds to a few minutes.
3. Dizziness
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Feeling faint, lightheaded or unsteady is common during anxiety, often as a result of rapid, shallow breathing. Tension in the neck and shoulders can add to it, and during a panic attack many people fear they will pass out, even though they rarely do.
4. Increased Heart Rate
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Anxiety triggers the fight-or-flight response, which speeds up the heart to pump more blood to the muscles. It is a normal survival mechanism, but with chronic anxiety it can switch on even when there is no real danger.
5. Muscle Aches
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Anxiety keeps muscles tense, and over time that tension can cause aches and stiffness anywhere in the body, especially the neck, shoulders and back. Long stretches of stress can leave the body feeling generally sore.
6. Muscle Weakness
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During the stress response the body diverts blood toward the large muscles, which can leave the arms and legs feeling shaky, jelly-like or weak. The feeling usually eases as the body calms down.
7. Headaches
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Tension headaches are closely linked to anxiety, often driven by tight neck and shoulder muscles, a clenched jaw, poor posture or shallow breathing. They typically feel like a dull ache or a band of pressure around the head.
8. Shortness of Breath
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Many people feel they cannot get enough air during anxiety, which is usually caused by hyperventilation, breathing too fast and upsetting the balance of oxygen and carbon dioxide. Slow, steady breathing helps bring it back to normal.
9. Digestive Discomfort
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The gut is highly sensitive to stress, so anxiety can bring on stomach cramps, nausea, bloating, heartburn, diarrhoea or constipation. Conditions such as irritable bowel syndrome are often made worse by ongoing stress.
10. Tingling Sensations
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Pins and needles or numbness, usually in the hands, feet or face, is another common and alarming symptom. It is most often a side effect of hyperventilation and physical tension, and it fades as breathing and tension settle.
Anxiety can produce a long list of uncomfortable physical sensations, but recognizing them as temporary effects of the stress response, rather than signs of a hidden disease, can take away much of their power. If your symptoms are severe, persistent or affecting daily life, speak to a doctor or mental-health professional, who can rule out other causes and help you find support.
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