Feeling cold or shivery during anxiety is a normal part of your body's stress response.
When your fight-or-flight system activates, blood flow is redirected away from your hands, feet, and skin toward your major organs and muscles. This can make you feel cold, especially in your extremities. Additionally, anxiety can cause muscle tension that manifests as shivering. Warm clothing, hot drinks, and relaxation techniques can help you feel more comfortable during anxious moments.