/squints
I keep hearing a weird rolling/gurgling noise from the other room

and it could be
a, plumbing in the bathroom behind me
b, branch scraping the edge of the roof on the bedroom in front of me
or
c, monsters.

possibly d, giant rat under the floorboards

Plumbing seems most likely

that'd be my guess too, but with the way the wind is branch is also likely

since I can't tell what side it's on, and that bothers me

(and also seems to be moving? So might be a tree limb rolling around on the roof)

and you would think I'd be able to tell if the noise was coming from above or below, but nope! This house is old as fuck and external noises seem to be coming from everywhere