Answer:
depersonalization.
Explanation:
Depersonalization: In psychology, the term "depersonalization" is described as an individual's sense of experiencing his or her own feelings, behavior, and thoughts from a "dreamlike distance". An individual who is experiencing depersonalization often feels emotionally numb, a sense of not being part of one's own body, not able to control one's actions or words, detached from basic sensations, for example, libido, touch, hunger, and thirst, etc.
In the question above, Jill's symptoms of a panic attack is known as depersonalization.