Used metaphorically to express deep emotional responses, especially negative ones like fear or anxiety.

Emotional Indicator

Emphasizes the strong intensity of a feeling, often uncomfortable or unpleasant.

Intensity Marker

Despite referring to a body part, it's about feelings, not physical conditions.

In medical or physical contexts, it actually refers to a specific part of the body.

Used to describe the exact site of physical impact or injury on the body.

This usage is straightforward and describes actual physical feelings or conditions.