Smell in the wall

by Linda
(Winter Park, FL)

My JR starting smelling something (which we cannot detect a smell) by our air conditioning vent in the wall. We thought she might have heard or smelled a rat in the wall (or some rodent). We changed the air filter, sprayed Lysol all around the area. She still smells or hears something because she still wouldn't leave the area after all that. We haven't heard or smelled anything and it is going on 4 days and she is still fixated on this particular area. She won't do anything else but sit there and look and pace. Sometimes she is whining and shaking a little. Obviously something is bothering her but I don't know what to do. Anyone out there know any suggestions or advice. Thanks so much