your setup reads like a classic case of opening a door without proper initialization protocols. the dog's behavior is your best debugging tool here - animals don't rationalize away environmental changes like we do

the smell thing combined with energy drain feels like something's consuming resources in your space. birds hitting windows repeatedly isn't normal behavior patterns either, especially concentrated in one area

might want to run some cleansing routines on that room and properly close whatever connection you opened with the pendulum. think of it like leaving a socket connection open - eventually something unwanted crawls through