Rejection Sensitivity is not 'just in your head' — it produces measurable physical symptoms through well-understood neurobiological pathways.
Why Rejection Sensitivity Causes Physical Symptoms
The brain and body are not separate systems. Rejection Sensitivity activates:
- The HPA axis: releasing cortisol that affects virtually every body system
- The autonomic nervous system: creating the physical experience of threat
- Inflammatory pathways: affecting immune function and tissue health
- The enteric nervous system (gut-brain axis): digestive symptoms common in rejection sensitivity
Common Physical Symptoms of Rejection Sensitivity
- Muscle tension, headaches, and chronic pain patterns
- Digestive symptoms: IBS, nausea, appetite changes
- Sleep disruption and fatigue
- Cardiovascular: heart palpitations, elevated blood pressure over time
- Immune effects: increased susceptibility to illness
When Physical Symptoms Are Primarily Rejection Sensitivity
Physical symptoms from rejection sensitivity are real, not imaginary. But they're best treated by addressing rejection sensitivity directly, alongside symptomatic relief when needed.