When sensory overload in regards to cats has been brought up to me, it was in the context of overstimulation. The cat is done being petted and turns around and swats you. I suppose in a whole different context it could mean that there is too much to distract her outdoors? I have had neighbors who did not like animals and used the repellent spray but it always seemed ineffective. Maybe it is better now though. If you use it, make sure that you are not excluding her, so to speak, from the area you want her to be in.