This is a form of perception shift, where one begins to feel non-existent body parts.
This is similar in description and feeling to those who have lost limbs, and yet still "feel" them there. This includes movement, tactile feelings ( being able to "touch" things ), and responses to outside stimuli.
Often felt are ears, tails, claws, teeth, muzzles, and wings. Less often, but still mentioned are feelings of whiskers, fur ( hackles ), paw pads, and other animal body parts.
Sensations of tactile stimuli often include, but not exclusive to; not being able to sit normally in a chair, not having enough "room" next to a person, wings brushing against doors, ears pivoting to react to a sound, and similar.