Health Anxiety vs Somatic Symptom Disorder: Key Differences & Similarities

Key Differences

Avoiding situations or responsibilities
Health Anxiety: Common
Somatic Symptom Disorder: Core
Explanation: In somatic symptom disorder, avoidance is more likely to become a steady part of daily life, while in health anxiety it may be more tied to specific feared health triggers.
Low energy or fatigue
Health Anxiety: Common
Somatic Symptom Disorder: Core
Explanation: Fatigue tends to be more central in somatic symptom disorder, whereas in health anxiety it may appear as part of ongoing stress and vigilance.
Muscle tension
Health Anxiety: Common
Somatic Symptom Disorder: Core
Explanation: Muscle tension is more central and persistent in somatic symptom disorder, while in health anxiety it is often one of several anxiety-related body sensations.
Brain fog
Health Anxiety: Associated
Somatic Symptom Disorder: Common
Explanation: Brain fog is more likely to be a persistent everyday complaint in somatic symptom disorder, while in health anxiety it may come and go during anxious episodes.
Racing thoughts
Health Anxiety: Common
Somatic Symptom Disorder: Associated
Explanation: Racing thoughts are more prominent in health anxiety, especially during worry spikes about health, and are less defining in somatic symptom disorder.

Key Similarities

Symptom How it is similar
Excessive worry Both can involve persistent worry that feels hard to switch off and may focus heavily on health or bodily concerns.
Difficulty coping with uncertainty Both can make uncertainty about symptoms or wellbeing feel especially distressing and difficult to tolerate.
Overthinking Both can involve repeated mental checking, analyzing, or replaying concerns in an effort to feel certain or safe.
Seeking constant reassurance Both can lead someone to repeatedly look for reassurance from others, medical information, or checking behaviors to reduce distress.
Stress-related digestive problems Both can include ongoing digestive discomfort linked with stress and anxiety, which can make the two conditions look similar on the surface.
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