Creaking Shower Floor - Due to previous overflow?
I have been very paranoid since an overflow we had a few months ago. It was the bathtub in the upstairs bathroom. It flowed all thorugh the bathroom but didn't make it onto the hall carpet. There was no caulking around the toilet. It leaked through the downstairs ceiling. It didn't get into any fixtures or anything. The overflow was caught quickly and I soaked everything up with towels and mops and turned the bathroom fan on. I've never seen any water stains or felt anything soft on any of the ceilings where it leaked through.
However, I do notice the upstairs shower, which did have caulking around it, seems to creak when I move around in it (and I'm really light). Could this be a sign that there was damage I just can't see and that it's rotting underneath the shower? This might sound silly but, if it is, could the whole shower fall through?
I would really appreciate any help, insights, advice. Thank you.