Before replacing the carpet in my bedroom I cut the carpet and screwed
down the sub floor to quiet down the squeaks.

Weeks later, the tiled floor in the bathroom adjacent to the bedroom now
has a slight bulge upwards. The bulged area is about 6 inches away from
the closest screwed down sub floor.

I guess screwing down the sub floor prevents them from moving
horizontally due to moisture expansion.

If I cut slits between the sub floor boards with a circular saw, would
that allow the floor to expand without bulging? Or should I just remove
the screws and live with squeaks?