I'm getting a rattling sound when I play and I can't figure out where it's coming from. The lower the note and the more I dig in the more I hear it. I do have fresh rounds but it's not fret buzz. Its not nut related, get it on fretted notes too. I've raised the action. I've lossened the truss for more relief. Put it back where it was so I know the truss rod works. I was wondering if the rod was broken and rattling but it seems to work. I've checked every screw and none are loose. I'm at a loss.I hear it unplugged. Starting to think I'm loosing my mind and maybe it's normal and I just never noticed. What could I check on next?