crazy....
I've never been to this forum before and registered simply to reply to you.
I Googled "recurrent dream huge bathroom many stalls" and this thread was the first result.

I've had this dream many many times. It's very odd.
It's almost just as you describe it. For me, it's always a very very large public bathroom...it almost feels as large as a football field. It's often dimply lit. There are hundreds if not thousands of stalls...all of them empty.

I just had this same dream last night...which lead me to Google it. I find it very odd that someone else has the exact same dream. Really makes you wonder what's going on in our brains...

Some other recurrent dream "locations" of mine...

- A very large dark cathedral...often crumbling within or leaking water.

- A neighborhood with downed trees and houses, like a hurricane blew through.

- An airport and/or airplane(airports often figure into some of my most profound dreams)

- The large bathroom described above.

- A very very large mansion that's super tall(like 30 stories)....with hundreds of rooms of various sizes. The mansion is often populated with people. This dream location is another setting for some of my most profound and meaningful dreams.