I'm also a drummer and have bps and yes drums give off a hell of a lot of vibration.
I had my drum kit in my attic and my first bp in the room below and every time I would play she'd be out looking for an exit.
She may have been sensitive or just a hell of a lot of coincidences but it was almost every time.
If you can't move either I would get some dampers. I had a set of vic firth dampers which where pretty good and stuffed the bass with blankets and loosened the bass skin a little when I needed to be quiet. But it's not the same then lol