Creature phobias
So many people have aversions to all-sorts of things, one of which is a fear of creatures be it: larger animals such as dogs or cats or horses; or smaller creatures including rodents or even insects such as bees or moths/butterflies.
Certainly, if you have a phobia, you'll have that overwhelming need to avoid contact with the source of your anxiety. Coming into contact with anything you have a fear of will cause you to feel anxiety and panic - and at times just thinking about the thing can lead to these feelings.