Probably, when you awoke today, you sensed your body in a way that felt normal. If, when you woke up today, your basic feelings felt unfamiliar, you might have been scared of losing your identity. At that time you identified with your family and were very alert to family emotions and relationships. Most people can feel the emotions that they imagine are felt by another person. Most people can imagine what another person feels like, at least for a short time.
Emotions are feelings of connection.
You might watch a film and identify with an actor or actress, and then you may feel unusual emotions for a few minutes longer than the film. Some people identify with another person in childhood, and live their lives experiencing feelings more appropriate to the other person. A childhood identification might last for a lifetime. Expressing another person's emotions may lead to identifying with the role model. The family may be aware of the theft, but avoid discussing it because of painful conflicts and guilt.