Nickan Arzpeyma:

The inner child often communicates through the body rather than through clear thoughts: a tight chest, a drop in the stomach, an urge to withdraw, appease or cling.

If you are struggling to put a name to an emotional state, metaphor can be especially useful. When a feeling feels vague or overwhelming, try giving it an image. You might picture the inner child behind a door, in a small room, or waiting in a particular place.