I did some hospital work early on as a very young man and never fit in. There was always something odd about hospital co-workers. I never could put my finger on what it was and assumed it was just the environment with sick people, etc. I even got fired from a couple places. Not really bullying, but lack of acceptance.
I have also met nurses, mostly male ones, that had that same weird vibe even when they were not at work. One was a gay couple that lived next door that kept coming over onto my property and chopping down my ivy because it was growing on my side of the fence.