Shivering during depressive episodes is a symptom of comorbid somatic anxiety, and patients mainly present with muscular system symptoms such as muscle aches, inflexibility, frequent muscle twitching, limb twitching, teeth chattering, and voice shaking.
The physiological explanation is due to sympathetic excitation.
At this point, one should actively seek medical attention and take antidepressants and anti-anxiety medication, and can also undergo psychological guidance and relaxation training under the guidance of a psychologist.