An update on the problem I spoke of:
We cleaned the wall twice with disinfectant and began running the bathroom fan for extended periods when showering. The wall feels normal now and we haven't scrubbed the "orange" stuff out of the shower yet (don't see it on the walls/floor). As a note, I spoke with my daughter in St. Marks and she said "oh yeah, we started getting that pinky stuff in our bathroom after we moved here....I just scrub it all off with disinfectant....
Guess I should have thought to ask her in the first place, but this is the first place I thought of
