You say the bedroom slide and not a FWS as
this link and pictures show.
In
QT's 1 & 2 which has all slide info and adjustments for your slides, you need to read the new slide info link and it tells you how.
I would open your bed and look under for any loose rod's the motor mount and gear housing that maybe loose in its mountings.
May look
like this.
This link has failures of slide systems, motor mounts, slide brackets and so forth, 3/4 the way down.
The bedroom slide has no adjustment as the FWS has its guided by the black square shape beam as motor gears and cog moves slide in and out.
If anything is loose the slide will track loosely on floor with no guidance.
Pictures in
this link will show you what bed slide looks like pulled apart.